20619828

素因数分解:

$2^2\times 3^2\times {\mathrm{419}}^1\times {\mathrm{1367}}^1$

素因数の和:1796

約数の個数: 36

約数和(自身を含む): 52284960

約数和(自身を除く): 31665132

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 419, 838, 1257, 1367, 1676, 2514, 2734, 3771, 4101, 5028, 5468, 7542, 8202, 12303, 15084, 16404, 24606, 49212, 572773, 1145546, 1718319, 2291092, 3436638, 5154957, 6873276, 10309914, 20619828]

約数ペア:

[(1, 20619828), (2, 10309914), (3, 6873276), (4, 5154957), (6, 3436638), (9, 2291092), (12, 1718319), (18, 1145546), (36, 572773), (419, 49212), (838, 24606), (1257, 16404), (1367, 15084), (1676, 12303), (2514, 8202), (2734, 7542), (3771, 5468), (4101, 5028)]