19963728

素因数分解:

$2^4\times 3^2\times {\mathrm{138637}}^1$

素因数の和:138651

約数の個数: 30

約数和(自身を含む): 55871114

約数和(自身を除く): 35907386

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 138637, 277274, 415911, 554548, 831822, 1109096, 1247733, 1663644, 2218192, 2495466, 3327288, 4990932, 6654576, 9981864, 19963728]

約数ペア:

[(1, 19963728), (2, 9981864), (3, 6654576), (4, 4990932), (6, 3327288), (8, 2495466), (9, 2218192), (12, 1663644), (16, 1247733), (18, 1109096), (24, 831822), (36, 554548), (48, 415911), (72, 277274), (144, 138637)]