21559647

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{797}}^1$

素因数の和:998

約数の個数: 16

約数和(自身を含む): 29417472

約数和(自身を除く): 7857825

約数列:

[1, 3, 71, 127, 213, 381, 797, 2391, 9017, 27051, 56587, 101219, 169761, 303657, 7186549, 21559647]

約数ペア:

[(1, 21559647), (3, 7186549), (71, 303657), (127, 169761), (213, 101219), (381, 56587), (797, 27051), (2391, 9017)]