20711385

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20011}}^1$

素因数の和:20045

約数の個数: 24

約数和(自身を含む): 37462464

約数和(自身を除く): 16751079

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20011, 60033, 100055, 180099, 300165, 460253, 900495, 1380759, 2301265, 4142277, 6903795, 20711385]

約数ペア:

[(1, 20711385), (3, 6903795), (5, 4142277), (9, 2301265), (15, 1380759), (23, 900495), (45, 460253), (69, 300165), (115, 180099), (207, 100055), (345, 60033), (1035, 20011)]