261320279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{2039}}^1$

素因数の和:2302

約数の個数: 16

約数和(自身を含む): 291409920

約数和(自身を除く): 30089641

約数列:

[1, 11, 61, 191, 671, 2039, 2101, 11651, 22429, 124379, 128161, 389449, 1368169, 4283939, 23756389, 261320279]

約数ペア:

[(1, 261320279), (11, 23756389), (61, 4283939), (191, 1368169), (671, 389449), (2039, 128161), (2101, 124379), (11651, 22429)]