20587007

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{13553}}^1$

素因数の和:13598

約数の個数: 12

約数和(自身を含む): 24722496

約数和(自身を除く): 4135489

約数列:

[1, 7, 31, 49, 217, 1519, 13553, 94871, 420143, 664097, 2941001, 20587007]

約数ペア:

[(1, 20587007), (7, 2941001), (31, 664097), (49, 420143), (217, 94871), (1519, 13553)]