20669992

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2351}}^1$

素因数の和:2521

約数の個数: 32

約数和(自身を含む): 44593920

約数和(自身を除く): 23923928

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2351, 4396, 4702, 8792, 9404, 16457, 18808, 32914, 65828, 131656, 369107, 738214, 1476428, 2583749, 2952856, 5167498, 10334996, 20669992]

約数ペア:

[(1, 20669992), (2, 10334996), (4, 5167498), (7, 2952856), (8, 2583749), (14, 1476428), (28, 738214), (56, 369107), (157, 131656), (314, 65828), (628, 32914), (1099, 18808), (1256, 16457), (2198, 9404), (2351, 8792), (4396, 4702)]