20637771

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12763}}^1$

素因数の和:12791

約数の個数: 24

約数和(自身を含む): 34922304

約数和(自身を除く): 14284533

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12763, 38289, 89341, 140393, 268023, 421179, 625387, 982751, 1876161, 2948253, 6879257, 20637771]

約数ペア:

[(1, 20637771), (3, 6879257), (7, 2948253), (11, 1876161), (21, 982751), (33, 625387), (49, 421179), (77, 268023), (147, 140393), (231, 89341), (539, 38289), (1617, 12763)]