20965161

素因数分解:

$3^1\times 7^1\times {\mathrm{811}}^1\times {\mathrm{1231}}^1$

素因数の和:2052

約数の個数: 16

約数和(自身を含む): 32012288

約数和(自身を除く): 11047127

約数列:

[1, 3, 7, 21, 811, 1231, 2433, 3693, 5677, 8617, 17031, 25851, 998341, 2995023, 6988387, 20965161]

約数ペア:

[(1, 20965161), (3, 6988387), (7, 2995023), (21, 998341), (811, 25851), (1231, 17031), (2433, 8617), (3693, 5677)]