27812781

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 42481920

約数和(自身を除く): 14669139

約数列:

[1, 3, 9, 27, 73, 103, 137, 219, 309, 411, 657, 927, 1233, 1971, 2781, 3699, 7519, 10001, 14111, 22557, 30003, 42333, 67671, 90009, 126999, 203013, 270027, 380997, 1030103, 3090309, 9270927, 27812781]

約数ペア:

[(1, 27812781), (3, 9270927), (9, 3090309), (27, 1030103), (73, 380997), (103, 270027), (137, 203013), (219, 126999), (309, 90009), (411, 67671), (657, 42333), (927, 30003), (1233, 22557), (1971, 14111), (2781, 10001), (3699, 7519)]