21107233

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{1051}}^1$

素因数の和:1228

約数の個数: 16

約数和(自身を含む): 25584640

約数和(自身を除く): 4477407

約数列:

[1, 7, 19, 133, 151, 1051, 1057, 2869, 7357, 19969, 20083, 139783, 158701, 1110907, 3015319, 21107233]

約数ペア:

[(1, 21107233), (7, 3015319), (19, 1110907), (133, 158701), (151, 139783), (1051, 20083), (1057, 19969), (2869, 7357)]