20257671

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9551}}^1$

素因数の和:9662

約数の個数: 16

約数和(自身を含む): 31177728

約数和(自身を除く): 10920057

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9551, 28653, 66857, 200571, 964651, 2893953, 6752557, 20257671]

約数ペア:

[(1, 20257671), (3, 6752557), (7, 2893953), (21, 964651), (101, 200571), (303, 66857), (707, 28653), (2121, 9551)]