20612799

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{8209}}^1$

素因数の和:8252

約数の個数: 20

約数和(自身を含む): 31789120

約数和(自身を除く): 11176321

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 8209, 24627, 73881, 221643, 254479, 664929, 763437, 2290311, 6870933, 20612799]

約数ペア:

[(1, 20612799), (3, 6870933), (9, 2290311), (27, 763437), (31, 664929), (81, 254479), (93, 221643), (279, 73881), (837, 24627), (2511, 8209)]