21309886

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{941}}^1$

素因数の和:1036

約数の個数: 24

約数和(自身を含む): 35166744

約数和(自身を除く): 13856858

約数列:

[1, 2, 13, 26, 67, 134, 169, 338, 871, 941, 1742, 1882, 11323, 12233, 22646, 24466, 63047, 126094, 159029, 318058, 819611, 1639222, 10654943, 21309886]

約数ペア:

[(1, 21309886), (2, 10654943), (13, 1639222), (26, 819611), (67, 318058), (134, 159029), (169, 126094), (338, 63047), (871, 24466), (941, 22646), (1742, 12233), (1882, 11323)]