20427351

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9631}}^1$

素因数の和:9742

約数の個数: 16

約数和(自身を含む): 31438848

約数和(自身を除く): 11011497

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9631, 28893, 67417, 202251, 972731, 2918193, 6809117, 20427351]

約数ペア:

[(1, 20427351), (3, 6809117), (7, 2918193), (21, 972731), (101, 202251), (303, 67417), (707, 28893), (2121, 9631)]