20390888

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21419}}^1$

素因数の和:21449

約数の個数: 32

約数和(自身を含む): 46267200

約数和(自身を除く): 25876312

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21419, 42838, 85676, 149933, 171352, 299866, 364123, 599732, 728246, 1199464, 1456492, 2548861, 2912984, 5097722, 10195444, 20390888]

約数ペア:

[(1, 20390888), (2, 10195444), (4, 5097722), (7, 2912984), (8, 2548861), (14, 1456492), (17, 1199464), (28, 728246), (34, 599732), (56, 364123), (68, 299866), (119, 171352), (136, 149933), (238, 85676), (476, 42838), (952, 21419)]