21751279

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2837}}^1$

素因数の和:2906

約数の個数: 16

約数和(自身を含む): 25746336

約数和(自身を除く): 3995057

約数列:

[1, 11, 17, 41, 187, 451, 697, 2837, 7667, 31207, 48229, 116317, 530519, 1279487, 1977389, 21751279]

約数ペア:

[(1, 21751279), (11, 1977389), (17, 1279487), (41, 530519), (187, 116317), (451, 48229), (697, 31207), (2837, 7667)]