1287209799

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{121309}}^1$

素因数の和:121452

約数の個数: 20

約数和(自身を含む): 1937563320

約数和(自身を除く): 650353521

約数列:

[1, 3, 9, 27, 81, 131, 393, 1179, 3537, 10611, 121309, 363927, 1091781, 3275343, 9826029, 15891479, 47674437, 143023311, 429069933, 1287209799]

約数ペア:

[(1, 1287209799), (3, 429069933), (9, 143023311), (27, 47674437), (81, 15891479), (131, 9826029), (393, 3275343), (1179, 1091781), (3537, 363927), (10611, 121309)]