28638915

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{26891}}^1$

素因数の和:26970

約数の個数: 16

約数和(自身を含む): 46469376

約数和(自身を除く): 17830461

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 26891, 80673, 134455, 403365, 1909261, 5727783, 9546305, 28638915]

約数ペア:

[(1, 28638915), (3, 9546305), (5, 5727783), (15, 1909261), (71, 403365), (213, 134455), (355, 80673), (1065, 26891)]