20815848

素因数分解:

$2^3\times 3^2\times {\mathrm{289109}}^1$

素因数の和:289121

約数の個数: 24

約数和(自身を含む): 56376450

約数和(自身を除く): 35560602

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 289109, 578218, 867327, 1156436, 1734654, 2312872, 2601981, 3469308, 5203962, 6938616, 10407924, 20815848]

約数ペア:

[(1, 20815848), (2, 10407924), (3, 6938616), (4, 5203962), (6, 3469308), (8, 2601981), (9, 2312872), (12, 1734654), (18, 1156436), (24, 867327), (36, 578218), (72, 289109)]