20457816211

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{1489}}^1\times {\mathrm{5437}}^1$

素因数の和:6971

約数の個数: 24

約数和(自身を含む): 24696785760

約数和(自身を除く): 4238969549

約数列:

[1, 7, 19, 133, 361, 1489, 2527, 5437, 10423, 28291, 38059, 103303, 198037, 537529, 723121, 1962757, 3762703, 8095693, 13739299, 56669851, 153818167, 1076727169, 2922545173, 20457816211]

約数ペア:

[(1, 20457816211), (7, 2922545173), (19, 1076727169), (133, 153818167), (361, 56669851), (1489, 13739299), (2527, 8095693), (5437, 3762703), (10423, 1962757), (28291, 723121), (38059, 537529), (103303, 198037)]