20518581708

素因数分解:

$2^2\times 3^2\times {\mathrm{1187}}^1\times {\mathrm{480169}}^1$

素因数の和:481366

約数の個数: 36

約数和(自身を含む): 51910218360

約数和(自身を除く): 31391636652

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 1187, 2374, 3561, 4748, 7122, 10683, 14244, 21366, 42732, 480169, 960338, 1440507, 1920676, 2881014, 4321521, 5762028, 8643042, 17286084, 569960603, 1139921206, 1709881809, 2279842412, 3419763618, 5129645427, 6839527236, 10259290854, 20518581708]

約数ペア:

[(1, 20518581708), (2, 10259290854), (3, 6839527236), (4, 5129645427), (6, 3419763618), (9, 2279842412), (12, 1709881809), (18, 1139921206), (36, 569960603), (1187, 17286084), (2374, 8643042), (3561, 5762028), (4748, 4321521), (7122, 2881014), (10683, 1920676), (14244, 1440507), (21366, 960338), (42732, 480169)]