18216978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{233551}}^1$

素因数の和:233569

約数の個数: 16

約数和(自身を含む): 39236736

約数和(自身を除く): 21019758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 233551, 467102, 700653, 1401306, 3036163, 6072326, 9108489, 18216978]

約数ペア:

[(1, 18216978), (2, 9108489), (3, 6072326), (6, 3036163), (13, 1401306), (26, 700653), (39, 467102), (78, 233551)]