20783656

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{152821}}^1$

素因数の和:152844

約数の個数: 16

約数和(自身を含む): 41261940

約数和(自身を除く): 20478284

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 152821, 305642, 611284, 1222568, 2597957, 5195914, 10391828, 20783656]

約数ペア:

[(1, 20783656), (2, 10391828), (4, 5195914), (8, 2597957), (17, 1222568), (34, 611284), (68, 305642), (136, 152821)]