21841880

素因数分解:

$2^3\times 5^1\times {\mathrm{546047}}^1$

素因数の和:546058

約数の個数: 16

約数和(自身を含む): 49144320

約数和(自身を除く): 27302440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 546047, 1092094, 2184188, 2730235, 4368376, 5460470, 10920940, 21841880]

約数ペア:

[(1, 21841880), (2, 10920940), (4, 5460470), (5, 4368376), (8, 2730235), (10, 2184188), (20, 1092094), (40, 546047)]