20999356

素因数分解:

$2^2\times 7^1\times {\mathrm{797}}^1\times {\mathrm{941}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 42096096

約数和(自身を除く): 21096740

約数列:

[1, 2, 4, 7, 14, 28, 797, 941, 1594, 1882, 3188, 3764, 5579, 6587, 11158, 13174, 22316, 26348, 749977, 1499954, 2999908, 5249839, 10499678, 20999356]

約数ペア:

[(1, 20999356), (2, 10499678), (4, 5249839), (7, 2999908), (14, 1499954), (28, 749977), (797, 26348), (941, 22316), (1594, 13174), (1882, 11158), (3188, 6587), (3764, 5579)]