21306012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 62092800

約数和(自身を除く): 40786788

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 78, 84, 91, 109, 156, 179, 182, 218, 273, 327, 358, 364, 436, 537, 546, 654, 716, 763, 1074, 1092, 1253, 1308, 1417, 1526, 2148, 2289, 2327, 2506, 2834, 3052, 3759, 4251, 4578, 4654, 5012, 5668, 6981, 7518, 8502, 9156, 9308, 9919, 13962, 15036, 16289, 17004, 19511, 19838, 27924, 29757, 32578, 39022, 39676, 48867, 58533, 59514, 65156, 78044, 97734, 117066, 119028, 136577, 195468, 234132, 253643, 273154, 409731, 507286, 546308, 760929, 819462, 1014572, 1521858, 1638924, 1775501, 3043716, 3551002, 5326503, 7102004, 10653006, 21306012]

約数ペア:

[(1, 21306012), (2, 10653006), (3, 7102004), (4, 5326503), (6, 3551002), (7, 3043716), (12, 1775501), (13, 1638924), (14, 1521858), (21, 1014572), (26, 819462), (28, 760929), (39, 546308), (42, 507286), (52, 409731), (78, 273154), (84, 253643), (91, 234132), (109, 195468), (156, 136577), (179, 119028), (182, 117066), (218, 97734), (273, 78044), (327, 65156), (358, 59514), (364, 58533), (436, 48867), (537, 39676), (546, 39022), (654, 32578), (716, 29757), (763, 27924), (1074, 19838), (1092, 19511), (1253, 17004), (1308, 16289), (1417, 15036), (1526, 13962), (2148, 9919), (2289, 9308), (2327, 9156), (2506, 8502), (2834, 7518), (3052, 6981), (3759, 5668), (4251, 5012), (4578, 4654)]