21668110

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 39948480

約数和(自身を除く): 18280370

約数列:

[1, 2, 5, 10, 103, 109, 193, 206, 218, 386, 515, 545, 965, 1030, 1090, 1930, 11227, 19879, 21037, 22454, 39758, 42074, 56135, 99395, 105185, 112270, 198790, 210370, 2166811, 4333622, 10834055, 21668110]

約数ペア:

[(1, 21668110), (2, 10834055), (5, 4333622), (10, 2166811), (103, 210370), (109, 198790), (193, 112270), (206, 105185), (218, 99395), (386, 56135), (515, 42074), (545, 39758), (965, 22454), (1030, 21037), (1090, 19879), (1930, 11227)]