21394252

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44203}}^1$

素因数の和:44229

約数の個数: 18

約数和(自身を含む): 41153924

約数和(自身を除く): 19759672

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44203, 88406, 176812, 486233, 972466, 1944932, 5348563, 10697126, 21394252]

約数ペア:

[(1, 21394252), (2, 10697126), (4, 5348563), (11, 1944932), (22, 972466), (44, 486233), (121, 176812), (242, 88406), (484, 44203)]