9639721

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 12432840

約数和(自身を除く): 2793119

約数列:

[1, 7, 13, 37, 49, 91, 259, 409, 481, 637, 1813, 2863, 3367, 5317, 15133, 20041, 23569, 37219, 105931, 196729, 260533, 741517, 1377103, 9639721]

約数ペア:

[(1, 9639721), (7, 1377103), (13, 741517), (37, 260533), (49, 196729), (91, 105931), (259, 37219), (409, 23569), (481, 20041), (637, 15133), (1813, 5317), (2863, 3367)]