31981491

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{1451}}^1$

素因数の和:1567

約数の個数: 24

約数和(自身を含む): 48322560

約数和(自身を除く): 16341069

約数列:

[1, 3, 9, 31, 79, 93, 237, 279, 711, 1451, 2449, 4353, 7347, 13059, 22041, 44981, 114629, 134943, 343887, 404829, 1031661, 3553499, 10660497, 31981491]

約数ペア:

[(1, 31981491), (3, 10660497), (9, 3553499), (31, 1031661), (79, 404829), (93, 343887), (237, 134943), (279, 114629), (711, 44981), (1451, 22041), (2449, 13059), (4353, 7347)]