68790789

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{49957}}^1$

素因数の和:49986

約数の個数: 20

約数和(自身を含む): 108808524

約数和(自身を除く): 40017735

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 49957, 149871, 449613, 849269, 1348839, 2547807, 4046517, 7643421, 22930263, 68790789]

約数ペア:

[(1, 68790789), (3, 22930263), (9, 7643421), (17, 4046517), (27, 2547807), (51, 1348839), (81, 849269), (153, 449613), (459, 149871), (1377, 49957)]