28139111

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28111}}^1$

素因数の和:28142

約数の個数: 16

約数和(自身を含む): 37782528

約数和(自身を除く): 9643417

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 28111, 196777, 309221, 365443, 2164547, 2558101, 4019873, 28139111]

約数ペア:

[(1, 28139111), (7, 4019873), (11, 2558101), (13, 2164547), (77, 365443), (91, 309221), (143, 196777), (1001, 28111)]