21349724

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44111}}^1$

素因数の和:44137

約数の個数: 18

約数和(自身を含む): 41068272

約数和(自身を除く): 19718548

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44111, 88222, 176444, 485221, 970442, 1940884, 5337431, 10674862, 21349724]

約数ペア:

[(1, 21349724), (2, 10674862), (4, 5337431), (11, 1940884), (22, 970442), (44, 485221), (121, 176444), (242, 88222), (484, 44111)]