211671713

素因数分解:

${\mathrm{11}}^2\times {\mathrm{113}}^2\times {\mathrm{137}}^1$

素因数の和:385

約数の個数: 18

約数和(自身を含む): 236454582

約数和(自身を除く): 24782869

約数列:

[1, 11, 113, 121, 137, 1243, 1507, 12769, 13673, 15481, 16577, 140459, 170291, 1545049, 1749353, 1873201, 19242883, 211671713]

約数ペア:

[(1, 211671713), (11, 19242883), (113, 1873201), (121, 1749353), (137, 1545049), (1243, 170291), (1507, 140459), (12769, 16577), (13673, 15481)]