21895190

素因数分解:

$2^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{6907}}^1$

素因数の和:7231

約数の個数: 16

約数和(自身を含む): 39541392

約数和(自身を除く): 17646202

約数列:

[1, 2, 5, 10, 317, 634, 1585, 3170, 6907, 13814, 34535, 69070, 2189519, 4379038, 10947595, 21895190]

約数ペア:

[(1, 21895190), (2, 10947595), (5, 4379038), (10, 2189519), (317, 69070), (634, 34535), (1585, 13814), (3170, 6907)]