12981215

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4871}}^1$

素因数の和:4930

約数の個数: 16

約数和(自身を含む): 17188416

約数和(自身を除く): 4207201

約数列:

[1, 5, 13, 41, 65, 205, 533, 2665, 4871, 24355, 63323, 199711, 316615, 998555, 2596243, 12981215]

約数ペア:

[(1, 12981215), (5, 2596243), (13, 998555), (41, 316615), (65, 199711), (205, 63323), (533, 24355), (2665, 4871)]