12758721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 19180800

約数和(自身を除く): 6422079

約数列:

[1, 3, 17, 23, 51, 69, 73, 149, 219, 391, 447, 1173, 1241, 1679, 2533, 3427, 3723, 5037, 7599, 10281, 10877, 28543, 32631, 58259, 85629, 174777, 184909, 250171, 554727, 750513, 4252907, 12758721]

約数ペア:

[(1, 12758721), (3, 4252907), (17, 750513), (23, 554727), (51, 250171), (69, 184909), (73, 174777), (149, 85629), (219, 58259), (391, 32631), (447, 28543), (1173, 10877), (1241, 10281), (1679, 7599), (2533, 5037), (3427, 3723)]