18640919

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1129}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 21696000

約数和(自身を除く): 3055081

約数列:

[1, 11, 19, 79, 209, 869, 1129, 1501, 12419, 16511, 21451, 89191, 235961, 981101, 1694629, 18640919]

約数ペア:

[(1, 18640919), (11, 1694629), (19, 981101), (79, 235961), (209, 89191), (869, 21451), (1129, 16511), (1501, 12419)]