21808900

素因数分解:

$2^2\times 5^2\times {\mathrm{467}}^2$

素因数の和:948

約数の個数: 27

約数和(自身を含む): 47426869

約数和(自身を除く): 25617969

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 467, 934, 1868, 2335, 4670, 9340, 11675, 23350, 46700, 218089, 436178, 872356, 1090445, 2180890, 4361780, 5452225, 10904450, 21808900]

約数ペア:

[(1, 21808900), (2, 10904450), (4, 5452225), (5, 4361780), (10, 2180890), (20, 1090445), (25, 872356), (50, 436178), (100, 218089), (467, 46700), (934, 23350), (1868, 11675), (2335, 9340)]