12819989

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8287}}^1$

素因数の和:8324

約数の個数: 16

約数和(自身を含む): 16708608

約数和(自身を除く): 3888619

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 8287, 58009, 107731, 140879, 754117, 986153, 1831427, 12819989]

約数ペア:

[(1, 12819989), (7, 1831427), (13, 986153), (17, 754117), (91, 140879), (119, 107731), (221, 58009), (1547, 8287)]