28901109

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{3701}}^1$

素因数の和:3860

約数の個数: 16

約数和(自身を含む): 40870080

約数和(自身を除く): 11968971

約数列:

[1, 3, 19, 57, 137, 411, 2603, 3701, 7809, 11103, 70319, 210957, 507037, 1521111, 9633703, 28901109]

約数ペア:

[(1, 28901109), (3, 9633703), (19, 1521111), (57, 507037), (137, 210957), (411, 70319), (2603, 11103), (3701, 7809)]