13279905

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6863}}^1$

素因数の和:6917

約数の個数: 24

約数和(自身を含む): 23557248

約数和(自身を除く): 10277343

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 6863, 20589, 34315, 61767, 102945, 295109, 308835, 885327, 1475545, 2655981, 4426635, 13279905]

約数ペア:

[(1, 13279905), (3, 4426635), (5, 2655981), (9, 1475545), (15, 885327), (43, 308835), (45, 295109), (129, 102945), (215, 61767), (387, 34315), (645, 20589), (1935, 6863)]