20021815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{11743}}^1$

素因数の和:11790

約数の個数: 16

約数和(自身を含む): 27058176

約数和(自身を除く): 7036361

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 11743, 58715, 129173, 364033, 645865, 1820165, 4004363, 20021815]

約数ペア:

[(1, 20021815), (5, 4004363), (11, 1820165), (31, 645865), (55, 364033), (155, 129173), (341, 58715), (1705, 11743)]