1987149941

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{28351}}^1$

素因数の和:28425

約数の個数: 32

約数和(自身を含む): 2612920320

約数和(自身を除く): 625770379

約数列:

[1, 7, 17, 19, 31, 119, 133, 217, 323, 527, 589, 2261, 3689, 4123, 10013, 28351, 70091, 198457, 481967, 538669, 878881, 3373769, 3770683, 6152167, 9157373, 14940977, 16698739, 64101611, 104586839, 116891173, 283878563, 1987149941]

約数ペア:

[(1, 1987149941), (7, 283878563), (17, 116891173), (19, 104586839), (31, 64101611), (119, 16698739), (133, 14940977), (217, 9157373), (323, 6152167), (527, 3770683), (589, 3373769), (2261, 878881), (3689, 538669), (4123, 481967), (10013, 198457), (28351, 70091)]