20427902

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{3613}}^1$

素因数の和:3883

約数の個数: 16

約数和(自身を含む): 33566832

約数和(自身を除く): 13138930

約数列:

[1, 2, 11, 22, 257, 514, 2827, 3613, 5654, 7226, 39743, 79486, 928541, 1857082, 10213951, 20427902]

約数ペア:

[(1, 20427902), (2, 10213951), (11, 1857082), (22, 928541), (257, 79486), (514, 39743), (2827, 7226), (3613, 5654)]