21847300

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1109}}^1$

素因数の和:1320

約数の個数: 36

約数和(自身を含む): 47692260

約数和(自身を除く): 25844960

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1109, 1970, 2218, 3940, 4436, 4925, 5545, 9850, 11090, 19700, 22180, 27725, 55450, 110900, 218473, 436946, 873892, 1092365, 2184730, 4369460, 5461825, 10923650, 21847300]

約数ペア:

[(1, 21847300), (2, 10923650), (4, 5461825), (5, 4369460), (10, 2184730), (20, 1092365), (25, 873892), (50, 436946), (100, 218473), (197, 110900), (394, 55450), (788, 27725), (985, 22180), (1109, 19700), (1970, 11090), (2218, 9850), (3940, 5545), (4436, 4925)]