12986971491

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1295717}}^1$

素因数の和:1295990

約数の個数: 16

約数和(自身を含む): 18720533664

約数和(自身を除く): 5733562173

約数列:

[1, 3, 13, 39, 257, 771, 3341, 10023, 1295717, 3887151, 16844321, 50532963, 332999269, 998997807, 4328990497, 12986971491]

約数ペア:

[(1, 12986971491), (3, 4328990497), (13, 998997807), (39, 332999269), (257, 50532963), (771, 16844321), (3341, 3887151), (10023, 1295717)]