21064665

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61057}}^1$

素因数の和:61088

約数の個数: 16

約数和(自身を含む): 35169408

約数和(自身を除く): 14104743

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61057, 183171, 305285, 915855, 1404311, 4212933, 7021555, 21064665]

約数ペア:

[(1, 21064665), (3, 7021555), (5, 4212933), (15, 1404311), (23, 915855), (69, 305285), (115, 183171), (345, 61057)]