9890505

素因数分解:

$3^4\times 5^1\times {\mathrm{24421}}^1$

素因数の和:24438

約数の個数: 20

約数和(自身を含む): 17730372

約数和(自身を除く): 7839867

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 24421, 73263, 122105, 219789, 366315, 659367, 1098945, 1978101, 3296835, 9890505]

約数ペア:

[(1, 9890505), (3, 3296835), (5, 1978101), (9, 1098945), (15, 659367), (27, 366315), (45, 219789), (81, 122105), (135, 73263), (405, 24421)]