12739905

素因数分解:

$3^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3181}}^1$

素因数の和:3281

約数の個数: 24

約数和(自身を含む): 22337640

約数和(自身を除く): 9597735

約数列:

[1, 3, 5, 9, 15, 45, 89, 267, 445, 801, 1335, 3181, 4005, 9543, 15905, 28629, 47715, 143145, 283109, 849327, 1415545, 2547981, 4246635, 12739905]

約数ペア:

[(1, 12739905), (3, 4246635), (5, 2547981), (9, 1415545), (15, 849327), (45, 283109), (89, 143145), (267, 47715), (445, 28629), (801, 15905), (1335, 9543), (3181, 4005)]