20861012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{5179}}^1$

素因数の和:5255

約数の個数: 24

約数和(自身を含む): 39160800

約数和(自身を除く): 18299788

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 2014, 4028, 5179, 10358, 20716, 98401, 196802, 274487, 393604, 548974, 1097948, 5215253, 10430506, 20861012]

約数ペア:

[(1, 20861012), (2, 10430506), (4, 5215253), (19, 1097948), (38, 548974), (53, 393604), (76, 274487), (106, 196802), (212, 98401), (1007, 20716), (2014, 10358), (4028, 5179)]