21981408456

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23203}}^1\times {\mathrm{5639}}^1$

素因数の和:28858

約数の個数: 64

約数和(自身を含む): 62817868800

約数和(自身を除く): 40836460344

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 5639, 11278, 16917, 22556, 23203, 33834, 39473, 45112, 46406, 67668, 69609, 78946, 92812, 118419, 135336, 139218, 157892, 162421, 185624, 236838, 278436, 315784, 324842, 473676, 487263, 556872, 649684, 947352, 974526, 1299368, 1949052, 3898104, 130841717, 261683434, 392525151, 523366868, 785050302, 915892019, 1046733736, 1570100604, 1831784038, 2747676057, 3140201208, 3663568076, 5495352114, 7327136152, 10990704228, 21981408456]

約数ペア:

[(1, 21981408456), (2, 10990704228), (3, 7327136152), (4, 5495352114), (6, 3663568076), (7, 3140201208), (8, 2747676057), (12, 1831784038), (14, 1570100604), (21, 1046733736), (24, 915892019), (28, 785050302), (42, 523366868), (56, 392525151), (84, 261683434), (168, 130841717), (5639, 3898104), (11278, 1949052), (16917, 1299368), (22556, 974526), (23203, 947352), (33834, 649684), (39473, 556872), (45112, 487263), (46406, 473676), (67668, 324842), (69609, 315784), (78946, 278436), (92812, 236838), (118419, 185624), (135336, 162421), (139218, 157892)]