21098530

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1571}}^1$

素因数の和:1674

約数の個数: 32

約数和(自身を含む): 40746240

約数和(自身を除く): 19647710

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 1571, 2686, 3142, 6715, 7855, 13430, 15710, 26707, 53414, 124109, 133535, 248218, 267070, 620545, 1241090, 2109853, 4219706, 10549265, 21098530]

約数ペア:

[(1, 21098530), (2, 10549265), (5, 4219706), (10, 2109853), (17, 1241090), (34, 620545), (79, 267070), (85, 248218), (158, 133535), (170, 124109), (395, 53414), (790, 26707), (1343, 15710), (1571, 13430), (2686, 7855), (3142, 6715)]