21165480

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:288

約数の個数: 192

約数和(自身を含む): 81095040

約数和(自身を除く): 59929560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 37, 40, 42, 45, 56, 60, 63, 70, 72, 74, 84, 90, 105, 111, 120, 126, 140, 148, 168, 180, 185, 210, 222, 227, 252, 259, 280, 296, 315, 333, 360, 370, 420, 444, 454, 504, 518, 555, 630, 666, 681, 740, 777, 840, 888, 908, 1036, 1110, 1135, 1260, 1295, 1332, 1362, 1480, 1554, 1589, 1665, 1816, 2043, 2072, 2220, 2270, 2331, 2520, 2590, 2664, 2724, 3108, 3178, 3330, 3405, 3885, 4086, 4440, 4540, 4662, 4767, 5180, 5448, 6216, 6356, 6660, 6810, 7770, 7945, 8172, 8399, 9080, 9324, 9534, 10215, 10360, 11655, 12712, 13320, 13620, 14301, 15540, 15890, 16344, 16798, 18648, 19068, 20430, 23310, 23835, 25197, 27240, 28602, 31080, 31780, 33596, 38136, 40860, 41995, 46620, 47670, 50394, 57204, 58793, 63560, 67192, 71505, 75591, 81720, 83990, 93240, 95340, 100788, 114408, 117586, 125985, 143010, 151182, 167980, 176379, 190680, 201576, 235172, 251970, 286020, 293965, 302364, 335960, 352758, 377955, 470344, 503940, 529137, 572040, 587930, 604728, 705516, 755910, 881895, 1007880, 1058274, 1175860, 1411032, 1511820, 1763790, 2116548, 2351720, 2645685, 3023640, 3527580, 4233096, 5291370, 7055160, 10582740, 21165480]

約数ペア:

[(1, 21165480), (2, 10582740), (3, 7055160), (4, 5291370), (5, 4233096), (6, 3527580), (7, 3023640), (8, 2645685), (9, 2351720), (10, 2116548), (12, 1763790), (14, 1511820), (15, 1411032), (18, 1175860), (20, 1058274), (21, 1007880), (24, 881895), (28, 755910), (30, 705516), (35, 604728), (36, 587930), (37, 572040), (40, 529137), (42, 503940), (45, 470344), (56, 377955), (60, 352758), (63, 335960), (70, 302364), (72, 293965), (74, 286020), (84, 251970), (90, 235172), (105, 201576), (111, 190680), (120, 176379), (126, 167980), (140, 151182), (148, 143010), (168, 125985), (180, 117586), (185, 114408), (210, 100788), (222, 95340), (227, 93240), (252, 83990), (259, 81720), (280, 75591), (296, 71505), (315, 67192), (333, 63560), (360, 58793), (370, 57204), (420, 50394), (444, 47670), (454, 46620), (504, 41995), (518, 40860), (555, 38136), (630, 33596), (666, 31780), (681, 31080), (740, 28602), (777, 27240), (840, 25197), (888, 23835), (908, 23310), (1036, 20430), (1110, 19068), (1135, 18648), (1260, 16798), (1295, 16344), (1332, 15890), (1362, 15540), (1480, 14301), (1554, 13620), (1589, 13320), (1665, 12712), (1816, 11655), (2043, 10360), (2072, 10215), (2220, 9534), (2270, 9324), (2331, 9080), (2520, 8399), (2590, 8172), (2664, 7945), (2724, 7770), (3108, 6810), (3178, 6660), (3330, 6356), (3405, 6216), (3885, 5448), (4086, 5180), (4440, 4767), (4540, 4662)]