21010901

素因数分解:

${\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:404

約数の個数: 16

約数和(自身を含む): 22665216

約数和(自身を除く): 1654315

約数列:

[1, 31, 41, 61, 271, 1271, 1891, 2501, 8401, 11111, 16531, 77531, 344441, 512461, 677771, 21010901]

約数ペア:

[(1, 21010901), (31, 677771), (41, 512461), (61, 344441), (271, 77531), (1271, 16531), (1891, 11111), (2501, 8401)]