19768724

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{809}}^1$

素因数の和:1003

約数の個数: 24

約数和(自身を含む): 35721000

約数和(自身を除く): 15952276

約数列:

[1, 2, 4, 41, 82, 149, 164, 298, 596, 809, 1618, 3236, 6109, 12218, 24436, 33169, 66338, 120541, 132676, 241082, 482164, 4942181, 9884362, 19768724]

約数ペア:

[(1, 19768724), (2, 9884362), (4, 4942181), (41, 482164), (82, 241082), (149, 132676), (164, 120541), (298, 66338), (596, 33169), (809, 24436), (1618, 12218), (3236, 6109)]