21869969

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{389}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 25272000

約数和(自身を除く): 3402031

約数列:

[1, 11, 19, 209, 269, 389, 2959, 4279, 5111, 7391, 56221, 81301, 104641, 1151051, 1988179, 21869969]

約数ペア:

[(1, 21869969), (11, 1988179), (19, 1151051), (209, 104641), (269, 81301), (389, 56221), (2959, 7391), (4279, 5111)]