21294371

素因数分解:

$7^2\times {\mathrm{79}}^1\times {\mathrm{5501}}^1$

素因数の和:5594

約数の個数: 12

約数和(自身を含む): 25089120

約数和(自身を除く): 3794749

約数列:

[1, 7, 49, 79, 553, 3871, 5501, 38507, 269549, 434579, 3042053, 21294371]

約数ペア:

[(1, 21294371), (7, 3042053), (49, 434579), (79, 269549), (553, 38507), (3871, 5501)]