21665829

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{809}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 29548800

約数和(自身を除く): 7882971

約数列:

[1, 3, 79, 113, 237, 339, 809, 2427, 8927, 26781, 63911, 91417, 191733, 274251, 7221943, 21665829]

約数ペア:

[(1, 21665829), (3, 7221943), (79, 274251), (113, 191733), (237, 91417), (339, 63911), (809, 26781), (2427, 8927)]