12165909

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{30491}}^1$

素因数の和:30520

約数の個数: 16

約数和(自身を含む): 19514880

約数和(自身を除く): 7348971

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 30491, 91473, 213437, 579329, 640311, 1737987, 4055303, 12165909]

約数ペア:

[(1, 12165909), (3, 4055303), (7, 1737987), (19, 640311), (21, 579329), (57, 213437), (133, 91473), (399, 30491)]