28418215

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7883}}^1$

素因数の和:7998

約数の個数: 16

約数和(自身を含む): 39356928

約数和(自身を除く): 10938713

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 7883, 39415, 55181, 275905, 811949, 4059745, 5683643, 28418215]

約数ペア:

[(1, 28418215), (5, 5683643), (7, 4059745), (35, 811949), (103, 275905), (515, 55181), (721, 39415), (3605, 7883)]