18981112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{233}}^1\times {\mathrm{599}}^1$

素因数の和:855

約数の個数: 32

約数和(自身を含む): 37908000

約数和(自身を除く): 18926888

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 233, 466, 599, 932, 1198, 1864, 2396, 3961, 4792, 7922, 10183, 15844, 20366, 31688, 40732, 81464, 139567, 279134, 558268, 1116536, 2372639, 4745278, 9490556, 18981112]

約数ペア:

[(1, 18981112), (2, 9490556), (4, 4745278), (8, 2372639), (17, 1116536), (34, 558268), (68, 279134), (136, 139567), (233, 81464), (466, 40732), (599, 31688), (932, 20366), (1198, 15844), (1864, 10183), (2396, 7922), (3961, 4792)]