12980019

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1381}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 18728864

約数和(自身を除く): 5748845

約数列:

[1, 3, 13, 39, 241, 723, 1381, 3133, 4143, 9399, 17953, 53859, 332821, 998463, 4326673, 12980019]

約数ペア:

[(1, 12980019), (3, 4326673), (13, 998463), (39, 332821), (241, 53859), (723, 17953), (1381, 9399), (3133, 4143)]