12742821

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15559}}^1$

素因数の和:15585

約数の個数: 24

約数和(自身を含む): 22655360

約数和(自身を除く): 9912539

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 15559, 46677, 108913, 140031, 202267, 326739, 606801, 980217, 1415869, 1820403, 4247607, 12742821]

約数ペア:

[(1, 12742821), (3, 4247607), (7, 1820403), (9, 1415869), (13, 980217), (21, 606801), (39, 326739), (63, 202267), (91, 140031), (117, 108913), (273, 46677), (819, 15559)]