20393172

素因数分解:

$2^2\times 3^2\times {\mathrm{661}}^1\times {\mathrm{857}}^1$

素因数の和:1528

約数の個数: 36

約数和(自身を含む): 51687636

約数和(自身を除く): 31294464

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 661, 857, 1322, 1714, 1983, 2571, 2644, 3428, 3966, 5142, 5949, 7713, 7932, 10284, 11898, 15426, 23796, 30852, 566477, 1132954, 1699431, 2265908, 3398862, 5098293, 6797724, 10196586, 20393172]

約数ペア:

[(1, 20393172), (2, 10196586), (3, 6797724), (4, 5098293), (6, 3398862), (9, 2265908), (12, 1699431), (18, 1132954), (36, 566477), (661, 30852), (857, 23796), (1322, 15426), (1714, 11898), (1983, 10284), (2571, 7932), (2644, 7713), (3428, 5949), (3966, 5142)]