9909945

素因数分解:

$3^4\times 5^1\times {\mathrm{24469}}^1$

素因数の和:24486

約数の個数: 20

約数和(自身を含む): 17765220

約数和(自身を除く): 7855275

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 24469, 73407, 122345, 220221, 367035, 660663, 1101105, 1981989, 3303315, 9909945]

約数ペア:

[(1, 9909945), (3, 3303315), (5, 1981989), (9, 1101105), (15, 660663), (27, 367035), (45, 220221), (81, 122345), (135, 73407), (405, 24469)]