21616585

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1637}}^1$

素因数の和:1800

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 5901815

約数列:

[1, 5, 19, 95, 139, 695, 1637, 2641, 8185, 13205, 31103, 155515, 227543, 1137715, 4323317, 21616585]

約数ペア:

[(1, 21616585), (5, 4323317), (19, 1137715), (95, 227543), (139, 155515), (695, 31103), (1637, 13205), (2641, 8185)]