20138181

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6899}}^1$

素因数の和:7048

約数の個数: 16

約数和(自身を含む): 30912000

約数和(自身を除く): 10773819

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6899, 20697, 48293, 144879, 958961, 2876883, 6712727, 20138181]

約数ペア:

[(1, 20138181), (3, 6712727), (7, 2876883), (21, 958961), (139, 144879), (417, 48293), (973, 20697), (2919, 6899)]