21785588

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{3323}}^1$

素因数の和:3487

約数の個数: 24

約数和(自身を含む): 41882400

約数和(自身を除く): 20096812

約数列:

[1, 2, 4, 11, 22, 44, 149, 298, 596, 1639, 3278, 3323, 6556, 6646, 13292, 36553, 73106, 146212, 495127, 990254, 1980508, 5446397, 10892794, 21785588]

約数ペア:

[(1, 21785588), (2, 10892794), (4, 5446397), (11, 1980508), (22, 990254), (44, 495127), (149, 146212), (298, 73106), (596, 36553), (1639, 13292), (3278, 6646), (3323, 6556)]