12390242

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{131}}^2$

素因数の和:302

約数の個数: 18

約数和(自身を含む): 19765899

約数和(自身を除く): 7375657

約数列:

[1, 2, 19, 38, 131, 262, 361, 722, 2489, 4978, 17161, 34322, 47291, 94582, 326059, 652118, 6195121, 12390242]

約数ペア:

[(1, 12390242), (2, 6195121), (19, 652118), (38, 326059), (131, 94582), (262, 47291), (361, 34322), (722, 17161), (2489, 4978)]