12721956

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{81551}}^1$

素因数の和:81571

約数の個数: 24

約数和(自身を含む): 31968384

約数和(自身を除く): 19246428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 81551, 163102, 244653, 326204, 489306, 978612, 1060163, 2120326, 3180489, 4240652, 6360978, 12721956]

約数ペア:

[(1, 12721956), (2, 6360978), (3, 4240652), (4, 3180489), (6, 2120326), (12, 1060163), (13, 978612), (26, 489306), (39, 326204), (52, 244653), (78, 163102), (156, 81551)]