21087009720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89977}}^1$

素因数の和:90035

約数の個数: 256

約数和(自身を含む): 82923724800

約数和(自身を除く): 61836715080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 168, 180, 186, 189, 210, 216, 217, 248, 252, 270, 279, 280, 310, 315, 360, 372, 378, 420, 434, 465, 504, 540, 558, 620, 630, 651, 744, 756, 837, 840, 868, 930, 945, 1080, 1085, 1116, 1240, 1260, 1302, 1395, 1512, 1674, 1736, 1860, 1890, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3348, 3720, 3780, 3906, 4185, 4340, 5208, 5580, 5859, 6510, 6696, 7560, 7812, 8370, 8680, 9765, 11160, 11718, 13020, 15624, 16740, 19530, 23436, 26040, 29295, 33480, 39060, 46872, 58590, 78120, 89977, 117180, 179954, 234360, 269931, 359908, 449885, 539862, 629839, 719816, 809793, 899770, 1079724, 1259678, 1349655, 1619586, 1799540, 1889517, 2159448, 2429379, 2519356, 2699310, 2789287, 3149195, 3239172, 3599080, 3779034, 4048965, 4858758, 5038712, 5398620, 5578574, 5668551, 6298390, 6478344, 7558068, 8097930, 8367861, 9447585, 9717516, 10797240, 11157148, 11337102, 12146895, 12596780, 13946435, 15116136, 16195860, 16735722, 17005653, 18895170, 19435032, 19525009, 22314296, 22674204, 24293790, 25103583, 25193560, 27892870, 28342755, 32391720, 33471444, 34011306, 37790340, 39050018, 41839305, 45348408, 48587580, 50207166, 55785740, 56685510, 58575027, 66942888, 68022612, 75310749, 75580680, 78100036, 83678610, 85028265, 97175160, 97625045, 100414332, 111571480, 113371020, 117150054, 125517915, 136045224, 150621498, 156200072, 167357220, 170056530, 175725081, 195250090, 200828664, 226742040, 234300108, 251035830, 292875135, 301242996, 334714440, 340113060, 351450162, 376553745, 390500180, 468600216, 502071660, 527175243, 585750270, 602485992, 680226120, 702900324, 753107490, 781000360, 878625405, 1004143320, 1054350486, 1171500540, 1405800648, 1506214980, 1757250810, 2108700972, 2343001080, 2635876215, 3012429960, 3514501620, 4217401944, 5271752430, 7029003240, 10543504860, 21087009720]

約数ペア:

[(1, 21087009720), (2, 10543504860), (3, 7029003240), (4, 5271752430), (5, 4217401944), (6, 3514501620), (7, 3012429960), (8, 2635876215), (9, 2343001080), (10, 2108700972), (12, 1757250810), (14, 1506214980), (15, 1405800648), (18, 1171500540), (20, 1054350486), (21, 1004143320), (24, 878625405), (27, 781000360), (28, 753107490), (30, 702900324), (31, 680226120), (35, 602485992), (36, 585750270), (40, 527175243), (42, 502071660), (45, 468600216), (54, 390500180), (56, 376553745), (60, 351450162), (62, 340113060), (63, 334714440), (70, 301242996), (72, 292875135), (84, 251035830), (90, 234300108), (93, 226742040), (105, 200828664), (108, 195250090), (120, 175725081), (124, 170056530), (126, 167357220), (135, 156200072), (140, 150621498), (155, 136045224), (168, 125517915), (180, 117150054), (186, 113371020), (189, 111571480), (210, 100414332), (216, 97625045), (217, 97175160), (248, 85028265), (252, 83678610), (270, 78100036), (279, 75580680), (280, 75310749), (310, 68022612), (315, 66942888), (360, 58575027), (372, 56685510), (378, 55785740), (420, 50207166), (434, 48587580), (465, 45348408), (504, 41839305), (540, 39050018), (558, 37790340), (620, 34011306), (630, 33471444), (651, 32391720), (744, 28342755), (756, 27892870), (837, 25193560), (840, 25103583), (868, 24293790), (930, 22674204), (945, 22314296), (1080, 19525009), (1085, 19435032), (1116, 18895170), (1240, 17005653), (1260, 16735722), (1302, 16195860), (1395, 15116136), (1512, 13946435), (1674, 12596780), (1736, 12146895), (1860, 11337102), (1890, 11157148), (1953, 10797240), (2170, 9717516), (2232, 9447585), (2520, 8367861), (2604, 8097930), (2790, 7558068), (3255, 6478344), (3348, 6298390), (3720, 5668551), (3780, 5578574), (3906, 5398620), (4185, 5038712), (4340, 4858758), (5208, 4048965), (5580, 3779034), (5859, 3599080), (6510, 3239172), (6696, 3149195), (7560, 2789287), (7812, 2699310), (8370, 2519356), (8680, 2429379), (9765, 2159448), (11160, 1889517), (11718, 1799540), (13020, 1619586), (15624, 1349655), (16740, 1259678), (19530, 1079724), (23436, 899770), (26040, 809793), (29295, 719816), (33480, 629839), (39060, 539862), (46872, 449885), (58590, 359908), (78120, 269931), (89977, 234360), (117180, 179954)]