21069796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1231}}^1$

素因数の和:1635

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 19290524

約数列:

[1, 2, 4, 11, 22, 44, 389, 778, 1231, 1556, 2462, 4279, 4924, 8558, 13541, 17116, 27082, 54164, 478859, 957718, 1915436, 5267449, 10534898, 21069796]

約数ペア:

[(1, 21069796), (2, 10534898), (4, 5267449), (11, 1915436), (22, 957718), (44, 478859), (389, 54164), (778, 27082), (1231, 17116), (1556, 13541), (2462, 8558), (4279, 4924)]