21180628

素因数分解:

$2^2\times 7^1\times {\mathrm{433}}^1\times {\mathrm{1747}}^1$

素因数の和:2191

約数の個数: 24

約数和(自身を含む): 42483392

約数和(自身を除く): 21302764

約数列:

[1, 2, 4, 7, 14, 28, 433, 866, 1732, 1747, 3031, 3494, 6062, 6988, 12124, 12229, 24458, 48916, 756451, 1512902, 3025804, 5295157, 10590314, 21180628]

約数ペア:

[(1, 21180628), (2, 10590314), (4, 5295157), (7, 3025804), (14, 1512902), (28, 756451), (433, 48916), (866, 24458), (1732, 12229), (1747, 12124), (3031, 6988), (3494, 6062)]