21630040

素因数分解:

$2^3\times 5^1\times {\mathrm{540751}}^1$

素因数の和:540762

約数の個数: 16

約数和(自身を含む): 48667680

約数和(自身を除く): 27037640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540751, 1081502, 2163004, 2703755, 4326008, 5407510, 10815020, 21630040]

約数ペア:

[(1, 21630040), (2, 10815020), (4, 5407510), (5, 4326008), (8, 2703755), (10, 2163004), (20, 1081502), (40, 540751)]