81780021

素因数分解:

$3^2\times {\mathrm{97}}^1\times {\mathrm{113}}^1\times {\mathrm{829}}^1$

素因数の和:1045

約数の個数: 24

約数和(自身を含む): 120545880

約数和(自身を除く): 38765859

約数列:

[1, 3, 9, 97, 113, 291, 339, 829, 873, 1017, 2487, 7461, 10961, 32883, 80413, 93677, 98649, 241239, 281031, 723717, 843093, 9086669, 27260007, 81780021]

約数ペア:

[(1, 81780021), (3, 27260007), (9, 9086669), (97, 843093), (113, 723717), (291, 281031), (339, 241239), (829, 98649), (873, 93677), (1017, 80413), (2487, 32883), (7461, 10961)]