20973359151

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{21379571}}^1$

素因数の和:21379686

約数の個数: 12

約数和(自身を含む): 30572787960

約数和(自身を除く): 9599428809

約数列:

[1, 3, 9, 109, 327, 981, 21379571, 64138713, 192416139, 2330373239, 6991119717, 20973359151]

約数ペア:

[(1, 20973359151), (3, 6991119717), (9, 2330373239), (109, 192416139), (327, 64138713), (981, 21379571)]