20751507

素因数分解:

$3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3701}}^1$

素因数の和:3803

約数の個数: 24

約数和(自身を含む): 34650720

約数和(自身を除く): 13899213

約数列:

[1, 3, 7, 9, 21, 63, 89, 267, 623, 801, 1869, 3701, 5607, 11103, 25907, 33309, 77721, 233163, 329389, 988167, 2305723, 2964501, 6917169, 20751507]

約数ペア:

[(1, 20751507), (3, 6917169), (7, 2964501), (9, 2305723), (21, 988167), (63, 329389), (89, 233163), (267, 77721), (623, 33309), (801, 25907), (1869, 11103), (3701, 5607)]