12720596

素因数分解:

$2^2\times 7^2\times {\mathrm{64901}}^1$

素因数の和:64919

約数の個数: 18

約数和(自身を含む): 25895898

約数和(自身を除く): 13175302

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 64901, 129802, 259604, 454307, 908614, 1817228, 3180149, 6360298, 12720596]

約数ペア:

[(1, 12720596), (2, 6360298), (4, 3180149), (7, 1817228), (14, 908614), (28, 454307), (49, 259604), (98, 129802), (196, 64901)]