21640404

素因数分解:

$2^2\times 3^1\times {\mathrm{113}}^1\times {\mathrm{15959}}^1$

素因数の和:16079

約数の個数: 24

約数和(自身を含む): 50944320

約数和(自身を除く): 29303916

約数列:

[1, 2, 3, 4, 6, 12, 113, 226, 339, 452, 678, 1356, 15959, 31918, 47877, 63836, 95754, 191508, 1803367, 3606734, 5410101, 7213468, 10820202, 21640404]

約数ペア:

[(1, 21640404), (2, 10820202), (3, 7213468), (4, 5410101), (6, 3606734), (12, 1803367), (113, 191508), (226, 95754), (339, 63836), (452, 47877), (678, 31918), (1356, 15959)]