20996870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4259}}^1$

素因数の和:4312

約数の個数: 32

約数和(自身を含む): 41407200

約数和(自身を除く): 20410330

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4259, 4930, 8518, 21295, 42590, 72403, 123511, 144806, 247022, 362015, 617555, 724030, 1235110, 2099687, 4199374, 10498435, 20996870]

約数ペア:

[(1, 20996870), (2, 10498435), (5, 4199374), (10, 2099687), (17, 1235110), (29, 724030), (34, 617555), (58, 362015), (85, 247022), (145, 144806), (170, 123511), (290, 72403), (493, 42590), (986, 21295), (2465, 8518), (4259, 4930)]