20785108

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{449}}^1$

素因数の和:687

約数の個数: 24

約数和(自身を含む): 37195200

約数和(自身を除く): 16410092

約数列:

[1, 2, 4, 71, 142, 163, 284, 326, 449, 652, 898, 1796, 11573, 23146, 31879, 46292, 63758, 73187, 127516, 146374, 292748, 5196277, 10392554, 20785108]

約数ペア:

[(1, 20785108), (2, 10392554), (4, 5196277), (71, 292748), (142, 146374), (163, 127516), (284, 73187), (326, 63758), (449, 46292), (652, 31879), (898, 23146), (1796, 11573)]