19913212

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41143}}^1$

素因数の和:41169

約数の個数: 18

約数和(自身を含む): 38305064

約数和(自身を除く): 18391852

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41143, 82286, 164572, 452573, 905146, 1810292, 4978303, 9956606, 19913212]

約数ペア:

[(1, 19913212), (2, 9956606), (4, 4978303), (11, 1810292), (22, 905146), (44, 452573), (121, 164572), (242, 82286), (484, 41143)]