21580118

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2311}}^1$

素因数の和:2372

約数の個数: 32

約数和(自身を含む): 39951360

約数和(自身を除く): 18371242

約数列:

[1, 2, 7, 14, 23, 29, 46, 58, 161, 203, 322, 406, 667, 1334, 2311, 4622, 4669, 9338, 16177, 32354, 53153, 67019, 106306, 134038, 372071, 469133, 744142, 938266, 1541437, 3082874, 10790059, 21580118]

約数ペア:

[(1, 21580118), (2, 10790059), (7, 3082874), (14, 1541437), (23, 938266), (29, 744142), (46, 469133), (58, 372071), (161, 134038), (203, 106306), (322, 67019), (406, 53153), (667, 32354), (1334, 16177), (2311, 9338), (4622, 4669)]