21745988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{1579}}^1$

素因数の和:1907

約数の個数: 24

約数和(自身を含む): 41674080

約数和(自身を除く): 19928092

約数列:

[1, 2, 4, 11, 22, 44, 313, 626, 1252, 1579, 3158, 3443, 6316, 6886, 13772, 17369, 34738, 69476, 494227, 988454, 1976908, 5436497, 10872994, 21745988]

約数ペア:

[(1, 21745988), (2, 10872994), (4, 5436497), (11, 1976908), (22, 988454), (44, 494227), (313, 69476), (626, 34738), (1252, 17369), (1579, 13772), (3158, 6886), (3443, 6316)]