15939759

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{21001}}^1$

素因数の和:21038

約数の個数: 16

約数和(自身を含む): 24194304

約数和(自身を除く): 8254545

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 21001, 63003, 231011, 483023, 693033, 1449069, 5313253, 15939759]

約数ペア:

[(1, 15939759), (3, 5313253), (11, 1449069), (23, 693033), (33, 483023), (69, 231011), (253, 63003), (759, 21001)]