28810881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12653}}^1$

素因数の和:12693

約数の個数: 24

約数和(自身を含む): 47376576

約数和(自身を除く): 18565695

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 207, 253, 759, 2277, 12653, 37959, 113877, 139183, 291019, 417549, 873057, 1252647, 2619171, 3201209, 9603627, 28810881]

約数ペア:

[(1, 28810881), (3, 9603627), (9, 3201209), (11, 2619171), (23, 1252647), (33, 873057), (69, 417549), (99, 291019), (207, 139183), (253, 113877), (759, 37959), (2277, 12653)]