20863205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2729}}^1$

素因数の和:2884

約数の個数: 16

約数和(自身を含む): 27518400

約数和(自身を除く): 6655195

約数列:

[1, 5, 11, 55, 139, 695, 1529, 2729, 7645, 13645, 30019, 150095, 379331, 1896655, 4172641, 20863205]

約数ペア:

[(1, 20863205), (5, 4172641), (11, 1896655), (55, 379331), (139, 150095), (695, 30019), (1529, 13645), (2729, 7645)]