21613459

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{1033}}^1$

素因数の和:1115

約数の個数: 16

約数和(自身を含む): 25643200

約数和(自身を除く): 4029741

約数列:

[1, 7, 49, 61, 343, 427, 1033, 2989, 7231, 20923, 50617, 63013, 354319, 441091, 3087637, 21613459]

約数ペア:

[(1, 21613459), (7, 3087637), (49, 441091), (61, 354319), (343, 63013), (427, 50617), (1033, 20923), (2989, 7231)]