21435960

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:198

約数の個数: 192

約数和(自身を含む): 80110080

約数和(自身を除く): 58674120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 151, 156, 168, 169, 182, 195, 210, 260, 273, 280, 302, 312, 338, 364, 390, 420, 453, 455, 507, 520, 546, 604, 676, 728, 755, 780, 840, 845, 906, 910, 1014, 1057, 1092, 1183, 1208, 1352, 1365, 1510, 1560, 1690, 1812, 1820, 1963, 2028, 2114, 2184, 2265, 2366, 2535, 2730, 3020, 3171, 3380, 3549, 3624, 3640, 3926, 4056, 4228, 4530, 4732, 5070, 5285, 5460, 5889, 5915, 6040, 6342, 6760, 7098, 7852, 8456, 9060, 9464, 9815, 10140, 10570, 10920, 11778, 11830, 12684, 13741, 14196, 15704, 15855, 17745, 18120, 19630, 20280, 21140, 23556, 23660, 25368, 25519, 27482, 28392, 29445, 31710, 35490, 39260, 41223, 42280, 47112, 47320, 51038, 54964, 58890, 63420, 68705, 70980, 76557, 78520, 82446, 102076, 109928, 117780, 126840, 127595, 137410, 141960, 153114, 164892, 178633, 204152, 206115, 235560, 255190, 274820, 306228, 329784, 357266, 382785, 412230, 510380, 535899, 549640, 612456, 714532, 765570, 824460, 893165, 1020760, 1071798, 1429064, 1531140, 1648920, 1786330, 2143596, 2679495, 3062280, 3572660, 4287192, 5358990, 7145320, 10717980, 21435960]

約数ペア:

[(1, 21435960), (2, 10717980), (3, 7145320), (4, 5358990), (5, 4287192), (6, 3572660), (7, 3062280), (8, 2679495), (10, 2143596), (12, 1786330), (13, 1648920), (14, 1531140), (15, 1429064), (20, 1071798), (21, 1020760), (24, 893165), (26, 824460), (28, 765570), (30, 714532), (35, 612456), (39, 549640), (40, 535899), (42, 510380), (52, 412230), (56, 382785), (60, 357266), (65, 329784), (70, 306228), (78, 274820), (84, 255190), (91, 235560), (104, 206115), (105, 204152), (120, 178633), (130, 164892), (140, 153114), (151, 141960), (156, 137410), (168, 127595), (169, 126840), (182, 117780), (195, 109928), (210, 102076), (260, 82446), (273, 78520), (280, 76557), (302, 70980), (312, 68705), (338, 63420), (364, 58890), (390, 54964), (420, 51038), (453, 47320), (455, 47112), (507, 42280), (520, 41223), (546, 39260), (604, 35490), (676, 31710), (728, 29445), (755, 28392), (780, 27482), (840, 25519), (845, 25368), (906, 23660), (910, 23556), (1014, 21140), (1057, 20280), (1092, 19630), (1183, 18120), (1208, 17745), (1352, 15855), (1365, 15704), (1510, 14196), (1560, 13741), (1690, 12684), (1812, 11830), (1820, 11778), (1963, 10920), (2028, 10570), (2114, 10140), (2184, 9815), (2265, 9464), (2366, 9060), (2535, 8456), (2730, 7852), (3020, 7098), (3171, 6760), (3380, 6342), (3549, 6040), (3624, 5915), (3640, 5889), (3926, 5460), (4056, 5285), (4228, 5070), (4530, 4732)]