20486691

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{757}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 30902144

約数和(自身を除く): 10415453

約数列:

[1, 3, 9, 31, 93, 97, 279, 291, 757, 873, 2271, 3007, 6813, 9021, 23467, 27063, 70401, 73429, 211203, 220287, 660861, 2276299, 6828897, 20486691]

約数ペア:

[(1, 20486691), (3, 6828897), (9, 2276299), (31, 660861), (93, 220287), (97, 211203), (279, 73429), (291, 70401), (757, 27063), (873, 23467), (2271, 9021), (3007, 6813)]