20288631

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 30670848

約数和(自身を除く): 10382217

約数列:

[1, 3, 11, 33, 47, 103, 127, 141, 309, 381, 517, 1133, 1397, 1551, 3399, 4191, 4841, 5969, 13081, 14523, 17907, 39243, 53251, 65659, 143891, 159753, 196977, 431673, 614807, 1844421, 6762877, 20288631]

約数ペア:

[(1, 20288631), (3, 6762877), (11, 1844421), (33, 614807), (47, 431673), (103, 196977), (127, 159753), (141, 143891), (309, 65659), (381, 53251), (517, 39243), (1133, 17907), (1397, 14523), (1551, 13081), (3399, 5969), (4191, 4841)]