18859221

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{51109}}^1$

素因数の和:51156

約数の個数: 12

約数和(自身を含む): 27906060

約数和(自身を除く): 9046839

約数列:

[1, 3, 9, 41, 123, 369, 51109, 153327, 459981, 2095469, 6286407, 18859221]

約数ペア:

[(1, 18859221), (3, 6286407), (9, 2095469), (41, 459981), (123, 153327), (369, 51109)]