20558984

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{151169}}^1$

素因数の和:151192

約数の個数: 16

約数和(自身を含む): 40815900

約数和(自身を除く): 20256916

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 151169, 302338, 604676, 1209352, 2569873, 5139746, 10279492, 20558984]

約数ペア:

[(1, 20558984), (2, 10279492), (4, 5139746), (8, 2569873), (17, 1209352), (34, 604676), (68, 302338), (136, 151169)]