21561032

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158537}}^1$

素因数の和:158560

約数の個数: 16

約数和(自身を含む): 42805260

約数和(自身を除く): 21244228

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158537, 317074, 634148, 1268296, 2695129, 5390258, 10780516, 21561032]

約数ペア:

[(1, 21561032), (2, 10780516), (4, 5390258), (8, 2695129), (17, 1268296), (34, 634148), (68, 317074), (136, 158537)]