31390689

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{547}}^1$

素因数の和:645

約数の個数: 32

約数和(自身を含む): 47978496

約数和(自身を除く): 16587807

約数列:

[1, 3, 11, 33, 37, 47, 111, 141, 407, 517, 547, 1221, 1551, 1641, 1739, 5217, 6017, 18051, 19129, 20239, 25709, 57387, 60717, 77127, 222629, 282799, 667887, 848397, 951233, 2853699, 10463563, 31390689]

約数ペア:

[(1, 31390689), (3, 10463563), (11, 2853699), (33, 951233), (37, 848397), (47, 667887), (111, 282799), (141, 222629), (407, 77127), (517, 60717), (547, 57387), (1221, 25709), (1551, 20239), (1641, 19129), (1739, 18051), (5217, 6017)]