21907890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{243421}}^1$

素因数の和:243434

約数の個数: 24

約数和(自身を含む): 56960748

約数和(自身を除く): 35052858

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 243421, 486842, 730263, 1217105, 1460526, 2190789, 2434210, 3651315, 4381578, 7302630, 10953945, 21907890]

約数ペア:

[(1, 21907890), (2, 10953945), (3, 7302630), (5, 4381578), (6, 3651315), (9, 2434210), (10, 2190789), (15, 1460526), (18, 1217105), (30, 730263), (45, 486842), (90, 243421)]