21299759

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{3109}}^1$

素因数の和:3170

約数の個数: 16

約数和(自身を含む): 25079040

約数和(自身を除く): 3779281

約数列:

[1, 13, 17, 31, 221, 403, 527, 3109, 6851, 40417, 52853, 96379, 687089, 1252927, 1638443, 21299759]

約数ペア:

[(1, 21299759), (13, 1638443), (17, 1252927), (31, 687089), (221, 96379), (403, 52853), (527, 40417), (3109, 6851)]