31219786

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 57915648

約数和(自身を除く): 26695862

約数列:

[1, 2, 13, 17, 23, 26, 34, 37, 46, 74, 83, 166, 221, 299, 391, 442, 481, 598, 629, 782, 851, 962, 1079, 1258, 1411, 1702, 1909, 2158, 2822, 3071, 3818, 5083, 6142, 8177, 10166, 11063, 14467, 16354, 18343, 22126, 24817, 28934, 32453, 36686, 39923, 49634, 52207, 64906, 70633, 79846, 104414, 141266, 188071, 376142, 421889, 678691, 843778, 918229, 1200761, 1357382, 1836458, 2401522, 15609893, 31219786]

約数ペア:

[(1, 31219786), (2, 15609893), (13, 2401522), (17, 1836458), (23, 1357382), (26, 1200761), (34, 918229), (37, 843778), (46, 678691), (74, 421889), (83, 376142), (166, 188071), (221, 141266), (299, 104414), (391, 79846), (442, 70633), (481, 64906), (598, 52207), (629, 49634), (782, 39923), (851, 36686), (962, 32453), (1079, 28934), (1258, 24817), (1411, 22126), (1702, 18343), (1909, 16354), (2158, 14467), (2822, 11063), (3071, 10166), (3818, 8177), (5083, 6142)]