18965499

素因数分解:

$3^1\times 7^4\times {\mathrm{2633}}^1$

素因数の和:2664

約数の個数: 20

約数和(自身を含む): 29511336

約数和(自身を除く): 10545837

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 2633, 7203, 7899, 18431, 55293, 129017, 387051, 903119, 2709357, 6321833, 18965499]

約数ペア:

[(1, 18965499), (3, 6321833), (7, 2709357), (21, 903119), (49, 387051), (147, 129017), (343, 55293), (1029, 18431), (2401, 7899), (2633, 7203)]