20811292

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{1069}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 37869440

約数和(自身を除く): 17058148

約数列:

[1, 2, 4, 31, 62, 124, 157, 314, 628, 1069, 2138, 4276, 4867, 9734, 19468, 33139, 66278, 132556, 167833, 335666, 671332, 5202823, 10405646, 20811292]

約数ペア:

[(1, 20811292), (2, 10405646), (4, 5202823), (31, 671332), (62, 335666), (124, 167833), (157, 132556), (314, 66278), (628, 33139), (1069, 19468), (2138, 9734), (4276, 4867)]