21270295730

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29958163}}^1$

素因数の和:29958241

約数の個数: 16

約数和(自身を含む): 38825780544

約数和(自身を除く): 17555484814

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29958163, 59916326, 149790815, 299581630, 2127029573, 4254059146, 10635147865, 21270295730]

約数ペア:

[(1, 21270295730), (2, 10635147865), (5, 4254059146), (10, 2127029573), (71, 299581630), (142, 149790815), (355, 59916326), (710, 29958163)]