21528801

素因数分解:

$3^3\times 7^1\times {\mathrm{113909}}^1$

素因数の和:113925

約数の個数: 16

約数和(自身を含む): 36451200

約数和(自身を除く): 14922399

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 113909, 341727, 797363, 1025181, 2392089, 3075543, 7176267, 21528801]

約数ペア:

[(1, 21528801), (3, 7176267), (7, 3075543), (9, 2392089), (21, 1025181), (27, 797363), (63, 341727), (189, 113909)]