18906085

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2473}}^1$

素因数の和:2628

約数の個数: 16

約数和(自身を含む): 24937920

約数和(自身を除く): 6031835

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2473, 7645, 12365, 27203, 136015, 343747, 1718735, 3781217, 18906085]

約数ペア:

[(1, 18906085), (5, 3781217), (11, 1718735), (55, 343747), (139, 136015), (695, 27203), (1529, 12365), (2473, 7645)]