20931099

素因数分解:

$3^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{1229}}^1$

素因数の和:2050

約数の個数: 16

約数和(自身を含む): 31960320

約数和(自身を除く): 11029221

約数列:

[1, 3, 7, 21, 811, 1229, 2433, 3687, 5677, 8603, 17031, 25809, 996719, 2990157, 6977033, 20931099]

約数ペア:

[(1, 20931099), (3, 6977033), (7, 2990157), (21, 996719), (811, 25809), (1229, 17031), (2433, 8603), (3687, 5677)]