18664857

素因数分解:

$3^3\times {\mathrm{659}}^1\times {\mathrm{1049}}^1$

素因数の和:1717

約数の個数: 16

約数和(自身を含む): 27720000

約数和(自身を除く): 9055143

約数列:

[1, 3, 9, 27, 659, 1049, 1977, 3147, 5931, 9441, 17793, 28323, 691291, 2073873, 6221619, 18664857]

約数ペア:

[(1, 18664857), (3, 6221619), (9, 2073873), (27, 691291), (659, 28323), (1049, 17793), (1977, 9441), (3147, 5931)]