19861917

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{5209}}^1$

素因数の和:5284

約数の個数: 16

約数和(自身を含む): 28008960

約数和(自身を除く): 8147043

約数列:

[1, 3, 31, 41, 93, 123, 1271, 3813, 5209, 15627, 161479, 213569, 484437, 640707, 6620639, 19861917]

約数ペア:

[(1, 19861917), (3, 6620639), (31, 640707), (41, 484437), (93, 213569), (123, 161479), (1271, 15627), (3813, 5209)]