18706961

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{661}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 23132928

約数和(自身を除く): 4425967

約数列:

[1, 7, 13, 91, 311, 661, 2177, 4043, 4627, 8593, 28301, 60151, 205571, 1438997, 2672423, 18706961]

約数ペア:

[(1, 18706961), (7, 2672423), (13, 1438997), (91, 205571), (311, 60151), (661, 28301), (2177, 8593), (4043, 4627)]