28704627

素因数分解:

$3^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{997}}^1$

素因数の和:1467

約数の個数: 24

約数和(自身を含む): 47536736

約数和(自身を除く): 18832109

約数列:

[1, 3, 7, 9, 21, 63, 457, 997, 1371, 2991, 3199, 4113, 6979, 8973, 9597, 20937, 28791, 62811, 455629, 1366887, 3189403, 4100661, 9568209, 28704627]

約数ペア:

[(1, 28704627), (3, 9568209), (7, 4100661), (9, 3189403), (21, 1366887), (63, 455629), (457, 62811), (997, 28791), (1371, 20937), (2991, 9597), (3199, 8973), (4113, 6979)]