18658658

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 30792960

約数和(自身を除く): 12134302

約数列:

[1, 2, 23, 29, 46, 58, 71, 142, 197, 394, 667, 1334, 1633, 2059, 3266, 4118, 4531, 5713, 9062, 11426, 13987, 27974, 47357, 94714, 131399, 262798, 321701, 405623, 643402, 811246, 9329329, 18658658]

約数ペア:

[(1, 18658658), (2, 9329329), (23, 811246), (29, 643402), (46, 405623), (58, 321701), (71, 262798), (142, 131399), (197, 94714), (394, 47357), (667, 27974), (1334, 13987), (1633, 11426), (2059, 9062), (3266, 5713), (4118, 4531)]