20001795

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{503}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 35126784

約数和(自身を除く): 15124989

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 241, 503, 723, 1205, 1509, 2515, 2651, 3615, 5533, 7545, 7953, 13255, 16599, 27665, 39765, 82995, 121223, 363669, 606115, 1333453, 1818345, 4000359, 6667265, 20001795]

約数ペア:

[(1, 20001795), (3, 6667265), (5, 4000359), (11, 1818345), (15, 1333453), (33, 606115), (55, 363669), (165, 121223), (241, 82995), (503, 39765), (723, 27665), (1205, 16599), (1509, 13255), (2515, 7953), (2651, 7545), (3615, 5533)]