21643437

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1733}}^1$

素因数の和:1940

約数の個数: 16

約数和(自身を含む): 30296448

約数和(自身を除く): 8653011

約数列:

[1, 3, 23, 69, 181, 543, 1733, 4163, 5199, 12489, 39859, 119577, 313673, 941019, 7214479, 21643437]

約数ペア:

[(1, 21643437), (3, 7214479), (23, 941019), (69, 313673), (181, 119577), (543, 39859), (1733, 12489), (4163, 5199)]