20299071

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1801}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 30979984

約数和(自身を除く): 10680913

約数列:

[1, 3, 13, 17, 39, 51, 221, 289, 663, 867, 1801, 3757, 5403, 11271, 23413, 30617, 70239, 91851, 398021, 520489, 1194063, 1561467, 6766357, 20299071]

約数ペア:

[(1, 20299071), (3, 6766357), (13, 1561467), (17, 1194063), (39, 520489), (51, 398021), (221, 91851), (289, 70239), (663, 30617), (867, 23413), (1801, 11271), (3757, 5403)]