21210524

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{971}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 38320128

約数和(自身を除く): 17109604

約数列:

[1, 2, 4, 43, 86, 127, 172, 254, 508, 971, 1942, 3884, 5461, 10922, 21844, 41753, 83506, 123317, 167012, 246634, 493268, 5302631, 10605262, 21210524]

約数ペア:

[(1, 21210524), (2, 10605262), (4, 5302631), (43, 493268), (86, 246634), (127, 167012), (172, 123317), (254, 83506), (508, 41753), (971, 21844), (1942, 10922), (3884, 5461)]