21097562

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{29221}}^1$

素因数の和:29261

約数の個数: 12

約数和(自身を含む): 33400746

約数和(自身を除く): 12303184

約数列:

[1, 2, 19, 38, 361, 722, 29221, 58442, 555199, 1110398, 10548781, 21097562]

約数ペア:

[(1, 21097562), (2, 10548781), (19, 1110398), (38, 555199), (361, 58442), (722, 29221)]