21232905

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19937}}^1$

素因数の和:20016

約数の個数: 16

約数和(自身を含む): 34452864

約数和(自身を除く): 13219959

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19937, 59811, 99685, 299055, 1415527, 4246581, 7077635, 21232905]

約数ペア:

[(1, 21232905), (3, 7077635), (5, 4246581), (15, 1415527), (71, 299055), (213, 99685), (355, 59811), (1065, 19937)]