18241391

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 22634496

約数和(自身を除く): 4393105

約数列:

[1, 7, 17, 71, 119, 127, 289, 497, 889, 1207, 2023, 2159, 8449, 9017, 15113, 20519, 36703, 63119, 143633, 153289, 256921, 1073023, 2605913, 18241391]

約数ペア:

[(1, 18241391), (7, 2605913), (17, 1073023), (71, 256921), (119, 153289), (127, 143633), (289, 63119), (497, 36703), (889, 20519), (1207, 15113), (2023, 9017), (2159, 8449)]