208403721

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{625837}}^1$

素因数の和:625880

約数の個数: 12

約数和(自身を含む): 309163972

約数和(自身を除く): 100760251

約数列:

[1, 3, 9, 37, 111, 333, 625837, 1877511, 5632533, 23155969, 69467907, 208403721]

約数ペア:

[(1, 208403721), (3, 69467907), (9, 23155969), (37, 5632533), (111, 1877511), (333, 625837)]