20989835859

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1722031}}^1$

素因数の和:1722290

約数の個数: 16

約数和(自身を含む): 29756712960

約数和(自身を除く): 8766877101

約数列:

[1, 3, 17, 51, 239, 717, 4063, 12189, 1722031, 5166093, 29274527, 87823581, 411565409, 1234696227, 6996611953, 20989835859]

約数ペア:

[(1, 20989835859), (3, 6996611953), (17, 1234696227), (51, 411565409), (239, 87823581), (717, 29274527), (4063, 5166093), (12189, 1722031)]