20458888

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8849}}^1$

素因数の和:8889

約数の個数: 24

約数和(自身を含む): 40754250

約数和(自身を除く): 20295362

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8849, 17698, 35396, 70792, 150433, 300866, 601732, 1203464, 2557361, 5114722, 10229444, 20458888]

約数ペア:

[(1, 20458888), (2, 10229444), (4, 5114722), (8, 2557361), (17, 1203464), (34, 601732), (68, 300866), (136, 150433), (289, 70792), (578, 35396), (1156, 17698), (2312, 8849)]