21550810

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{16451}}^1$

素因数の和:16589

約数の個数: 16

約数和(自身を含む): 39089952

約数和(自身を除く): 17539142

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 16451, 32902, 82255, 164510, 2155081, 4310162, 10775405, 21550810]

約数ペア:

[(1, 21550810), (2, 10775405), (5, 4310162), (10, 2155081), (131, 164510), (262, 82255), (655, 32902), (1310, 16451)]