21360215

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{661}}^1$

素因数の和:970

約数の個数: 16

約数和(自身を含む): 26882496

約数和(自身を除く): 5522281

約数列:

[1, 5, 23, 115, 281, 661, 1405, 3305, 6463, 15203, 32315, 76015, 185741, 928705, 4272043, 21360215]

約数ペア:

[(1, 21360215), (5, 4272043), (23, 928705), (115, 185741), (281, 76015), (661, 32315), (1405, 15203), (3305, 6463)]