21577352

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158657}}^1$

素因数の和:158680

約数の個数: 16

約数和(自身を含む): 42837660

約数和(自身を除く): 21260308

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158657, 317314, 634628, 1269256, 2697169, 5394338, 10788676, 21577352]

約数ペア:

[(1, 21577352), (2, 10788676), (4, 5394338), (8, 2697169), (17, 1269256), (34, 634628), (68, 317314), (136, 158657)]