20268549

素因数分解:

$3^4\times 7^1\times {\mathrm{35747}}^1$

素因数の和:35766

約数の個数: 20

約数和(自身を含む): 34604064

約数和(自身を除く): 14335515

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35747, 107241, 250229, 321723, 750687, 965169, 2252061, 2895507, 6756183, 20268549]

約数ペア:

[(1, 20268549), (3, 6756183), (7, 2895507), (9, 2252061), (21, 965169), (27, 750687), (63, 321723), (81, 250229), (189, 107241), (567, 35747)]