20874815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6833}}^1$

素因数の和:6898

約数の個数: 16

約数和(自身を含む): 27554688

約数和(自身を除く): 6679873

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6833, 34165, 88829, 321151, 444145, 1605755, 4174963, 20874815]

約数ペア:

[(1, 20874815), (5, 4174963), (13, 1605755), (47, 444145), (65, 321151), (235, 88829), (611, 34165), (3055, 6833)]