18155991

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3877}}^1$

素因数の和:4110

約数の個数: 16

約数和(自身を含む): 27797504

約数和(自身を除く): 9641513

約数列:

[1, 3, 7, 21, 223, 669, 1561, 3877, 4683, 11631, 27139, 81417, 864571, 2593713, 6051997, 18155991]

約数ペア:

[(1, 18155991), (3, 6051997), (7, 2593713), (21, 864571), (223, 81417), (669, 27139), (1561, 11631), (3877, 4683)]