28218807

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:324

約数の個数: 32

約数和(自身を含む): 43097600

約数和(自身を除く): 14878793

約数列:

[1, 3, 9, 27, 73, 103, 139, 219, 309, 417, 657, 927, 1251, 1971, 2781, 3753, 7519, 10147, 14317, 22557, 30441, 42951, 67671, 91323, 128853, 203013, 273969, 386559, 1045141, 3135423, 9406269, 28218807]

約数ペア:

[(1, 28218807), (3, 9406269), (9, 3135423), (27, 1045141), (73, 386559), (103, 273969), (139, 203013), (219, 128853), (309, 91323), (417, 67671), (657, 42951), (927, 30441), (1251, 22557), (1971, 14317), (2781, 10147), (3753, 7519)]