20213391

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:431

約数の個数: 32

約数和(自身を含む): 31477248

約数和(自身を除く): 11263857

約数列:

[1, 3, 11, 17, 33, 51, 137, 187, 263, 411, 561, 789, 1507, 2329, 2893, 4471, 4521, 6987, 8679, 13413, 25619, 36031, 49181, 76857, 108093, 147543, 396341, 612527, 1189023, 1837581, 6737797, 20213391]

約数ペア:

[(1, 20213391), (3, 6737797), (11, 1837581), (17, 1189023), (33, 612527), (51, 396341), (137, 147543), (187, 108093), (263, 76857), (411, 49181), (561, 36031), (789, 25619), (1507, 13413), (2329, 8679), (2893, 6987), (4471, 4521)]