20941731

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1021}}^1$

素因数の和:1123

約数の個数: 24

約数和(自身を含む): 31567536

約数和(自身を除く): 10625805

約数列:

[1, 3, 9, 43, 53, 129, 159, 387, 477, 1021, 2279, 3063, 6837, 9189, 20511, 43903, 54113, 131709, 162339, 395127, 487017, 2326859, 6980577, 20941731]

約数ペア:

[(1, 20941731), (3, 6980577), (9, 2326859), (43, 487017), (53, 395127), (129, 162339), (159, 131709), (387, 54113), (477, 43903), (1021, 20511), (2279, 9189), (3063, 6837)]