20988253

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{463}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 24788736

約数和(自身を除く): 3800483

約数列:

[1, 11, 13, 143, 317, 463, 3487, 4121, 5093, 6019, 45331, 66209, 146771, 1614481, 1908023, 20988253]

約数ペア:

[(1, 20988253), (11, 1908023), (13, 1614481), (143, 146771), (317, 66209), (463, 45331), (3487, 6019), (4121, 5093)]