12705885

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{977}}^1$

素因数の和:1022

約数の個数: 36

約数和(自身を含む): 23419188

約数和(自身を除く): 10713303

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 289, 765, 867, 977, 1445, 2601, 2931, 4335, 4885, 8793, 13005, 14655, 16609, 43965, 49827, 83045, 149481, 249135, 282353, 747405, 847059, 1411765, 2541177, 4235295, 12705885]

約数ペア:

[(1, 12705885), (3, 4235295), (5, 2541177), (9, 1411765), (15, 847059), (17, 747405), (45, 282353), (51, 249135), (85, 149481), (153, 83045), (255, 49827), (289, 43965), (765, 16609), (867, 14655), (977, 13005), (1445, 8793), (2601, 4885), (2931, 4335)]