12889191

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{3391}}^1$

素因数の和:3582

約数の個数: 16

約数和(自身を含む): 19755008

約数和(自身を除く): 6865817

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3391, 3801, 10173, 23737, 71211, 613771, 1841313, 4296397, 12889191]

約数ペア:

[(1, 12889191), (3, 4296397), (7, 1841313), (21, 613771), (181, 71211), (543, 23737), (1267, 10173), (3391, 3801)]