20505289

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{1931}}^1$

素因数の和:2016

約数の個数: 16

約数和(自身を含む): 24667776

約数和(自身を除く): 4162487

約数列:

[1, 7, 37, 41, 259, 287, 1517, 1931, 10619, 13517, 71447, 79171, 500129, 554197, 2929327, 20505289]

約数ペア:

[(1, 20505289), (7, 2929327), (37, 554197), (41, 500129), (259, 79171), (287, 71447), (1517, 13517), (1931, 10619)]