21564230

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25981}}^1$

素因数の和:26071

約数の個数: 16

約数和(自身を含む): 39284784

約数和(自身を除く): 17720554

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25981, 51962, 129905, 259810, 2156423, 4312846, 10782115, 21564230]

約数ペア:

[(1, 21564230), (2, 10782115), (5, 4312846), (10, 2156423), (83, 259810), (166, 129905), (415, 51962), (830, 25981)]