21340220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97001}}^1$

素因数の和:97021

約数の個数: 24

約数和(自身を含む): 48889008

約数和(自身を除く): 27548788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 97001, 194002, 388004, 485005, 970010, 1067011, 1940020, 2134022, 4268044, 5335055, 10670110, 21340220]

約数ペア:

[(1, 21340220), (2, 10670110), (4, 5335055), (5, 4268044), (10, 2134022), (11, 1940020), (20, 1067011), (22, 970010), (44, 485005), (55, 388004), (110, 194002), (220, 97001)]