21963240

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2$

素因数の和:81

約数の個数: 216

約数和(自身を含む): 81575910

約数和(自身を除く): 59612670

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 19, 20, 24, 26, 30, 36, 38, 39, 40, 45, 52, 57, 60, 65, 72, 76, 78, 90, 95, 104, 114, 117, 120, 130, 152, 156, 169, 171, 180, 190, 195, 228, 234, 247, 260, 285, 312, 338, 342, 360, 361, 380, 390, 456, 468, 494, 507, 520, 570, 585, 676, 684, 722, 741, 760, 780, 845, 855, 936, 988, 1014, 1083, 1140, 1170, 1235, 1352, 1368, 1444, 1482, 1521, 1560, 1690, 1710, 1805, 1976, 2028, 2166, 2223, 2280, 2340, 2470, 2535, 2888, 2964, 3042, 3211, 3249, 3380, 3420, 3610, 3705, 4056, 4332, 4446, 4680, 4693, 4940, 5070, 5415, 5928, 6084, 6422, 6498, 6760, 6840, 7220, 7410, 7605, 8664, 8892, 9386, 9633, 9880, 10140, 10830, 11115, 12168, 12844, 12996, 14079, 14440, 14820, 15210, 16055, 16245, 17784, 18772, 19266, 20280, 21660, 22230, 23465, 25688, 25992, 28158, 28899, 29640, 30420, 32110, 32490, 37544, 38532, 42237, 43320, 44460, 46930, 48165, 56316, 57798, 60840, 61009, 64220, 64980, 70395, 77064, 84474, 88920, 93860, 96330, 112632, 115596, 122018, 128440, 129960, 140790, 144495, 168948, 183027, 187720, 192660, 211185, 231192, 244036, 281580, 288990, 305045, 337896, 366054, 385320, 422370, 488072, 549081, 563160, 577980, 610090, 732108, 844740, 915135, 1098162, 1155960, 1220180, 1464216, 1689480, 1830270, 2196324, 2440360, 2745405, 3660540, 4392648, 5490810, 7321080, 10981620, 21963240]

約数ペア:

[(1, 21963240), (2, 10981620), (3, 7321080), (4, 5490810), (5, 4392648), (6, 3660540), (8, 2745405), (9, 2440360), (10, 2196324), (12, 1830270), (13, 1689480), (15, 1464216), (18, 1220180), (19, 1155960), (20, 1098162), (24, 915135), (26, 844740), (30, 732108), (36, 610090), (38, 577980), (39, 563160), (40, 549081), (45, 488072), (52, 422370), (57, 385320), (60, 366054), (65, 337896), (72, 305045), (76, 288990), (78, 281580), (90, 244036), (95, 231192), (104, 211185), (114, 192660), (117, 187720), (120, 183027), (130, 168948), (152, 144495), (156, 140790), (169, 129960), (171, 128440), (180, 122018), (190, 115596), (195, 112632), (228, 96330), (234, 93860), (247, 88920), (260, 84474), (285, 77064), (312, 70395), (338, 64980), (342, 64220), (360, 61009), (361, 60840), (380, 57798), (390, 56316), (456, 48165), (468, 46930), (494, 44460), (507, 43320), (520, 42237), (570, 38532), (585, 37544), (676, 32490), (684, 32110), (722, 30420), (741, 29640), (760, 28899), (780, 28158), (845, 25992), (855, 25688), (936, 23465), (988, 22230), (1014, 21660), (1083, 20280), (1140, 19266), (1170, 18772), (1235, 17784), (1352, 16245), (1368, 16055), (1444, 15210), (1482, 14820), (1521, 14440), (1560, 14079), (1690, 12996), (1710, 12844), (1805, 12168), (1976, 11115), (2028, 10830), (2166, 10140), (2223, 9880), (2280, 9633), (2340, 9386), (2470, 8892), (2535, 8664), (2888, 7605), (2964, 7410), (3042, 7220), (3211, 6840), (3249, 6760), (3380, 6498), (3420, 6422), (3610, 6084), (3705, 5928), (4056, 5415), (4332, 5070), (4446, 4940), (4680, 4693)]