21904772

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{2459}}^1$

素因数の和:2611

約数の個数: 24

約数和(自身を含む): 40914720

約数和(自身を除く): 19009948

約数列:

[1, 2, 4, 17, 34, 68, 131, 262, 524, 2227, 2459, 4454, 4918, 8908, 9836, 41803, 83606, 167212, 322129, 644258, 1288516, 5476193, 10952386, 21904772]

約数ペア:

[(1, 21904772), (2, 10952386), (4, 5476193), (17, 1288516), (34, 644258), (68, 322129), (131, 167212), (262, 83606), (524, 41803), (2227, 9836), (2459, 8908), (4454, 4918)]