12971187

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{4987}}^1$

素因数の和:5027

約数の個数: 18

約数和(自身を含む): 19907108

約数和(自身を除く): 6935921

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 4987, 14961, 44883, 84779, 254337, 763011, 1441243, 4323729, 12971187]

約数ペア:

[(1, 12971187), (3, 4323729), (9, 1441243), (17, 763011), (51, 254337), (153, 84779), (289, 44883), (867, 14961), (2601, 4987)]