20391058

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8447}}^1$

素因数の和:8537

約数の個数: 16

約数和(自身を含む): 32845824

約数和(自身を除く): 12454766

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8447, 16894, 143599, 287198, 599737, 1199474, 10195529, 20391058]

約数ペア:

[(1, 20391058), (2, 10195529), (17, 1199474), (34, 599737), (71, 287198), (142, 143599), (1207, 16894), (2414, 8447)]