21901898

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{2239}}^1$

素因数の和:2381

約数の個数: 16

約数和(自身を含む): 33815040

約数和(自身を除く): 11913142

約数列:

[1, 2, 67, 73, 134, 146, 2239, 4478, 4891, 9782, 150013, 163447, 300026, 326894, 10950949, 21901898]

約数ペア:

[(1, 21901898), (2, 10950949), (67, 326894), (73, 300026), (134, 163447), (146, 150013), (2239, 9782), (4478, 4891)]