28140287

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2657}}^1$

素因数の和:2770

約数の個数: 16

約数和(自身を含む): 34447680

約数和(自身を除く): 6307393

約数列:

[1, 7, 17, 89, 119, 623, 1513, 2657, 10591, 18599, 45169, 236473, 316183, 1655311, 4020041, 28140287]

約数ペア:

[(1, 28140287), (7, 4020041), (17, 1655311), (89, 316183), (119, 236473), (623, 45169), (1513, 18599), (2657, 10591)]