28206549

素因数分解:

$3^4\times 7^1\times {\mathrm{49747}}^1$

素因数の和:49766

約数の個数: 20

約数和(自身を含む): 48156064

約数和(自身を除く): 19949515

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49747, 149241, 348229, 447723, 1044687, 1343169, 3134061, 4029507, 9402183, 28206549]

約数ペア:

[(1, 28206549), (3, 9402183), (7, 4029507), (9, 3134061), (21, 1343169), (27, 1044687), (63, 447723), (81, 348229), (189, 149241), (567, 49747)]