21815624

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160409}}^1$

素因数の和:160432

約数の個数: 16

約数和(自身を含む): 43310700

約数和(自身を除く): 21495076

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160409, 320818, 641636, 1283272, 2726953, 5453906, 10907812, 21815624]

約数ペア:

[(1, 21815624), (2, 10907812), (4, 5453906), (8, 2726953), (17, 1283272), (34, 641636), (68, 320818), (136, 160409)]