521219997

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{83}}^1\times {\mathrm{1319}}^1$

素因数の和:1454

約数の個数: 36

約数和(自身を含む): 797116320

約数和(自身を除く): 275896323

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 529, 747, 1319, 1587, 1909, 3957, 4761, 5727, 11871, 17181, 30337, 43907, 91011, 109477, 131721, 273033, 328431, 395163, 697751, 985293, 2093253, 2517971, 6279759, 7553913, 22661739, 57913333, 173739999, 521219997]

約数ペア:

[(1, 521219997), (3, 173739999), (9, 57913333), (23, 22661739), (69, 7553913), (83, 6279759), (207, 2517971), (249, 2093253), (529, 985293), (747, 697751), (1319, 395163), (1587, 328431), (1909, 273033), (3957, 131721), (4761, 109477), (5727, 91011), (11871, 43907), (17181, 30337)]