210923881

素因数分解:

$7^2\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 250252800

約数和(自身を除く): 39328919

約数列:

[1, 7, 49, 97, 199, 223, 679, 1393, 1561, 4753, 9751, 10927, 19303, 21631, 44377, 135121, 151417, 310639, 945847, 1059919, 2174473, 4304569, 30131983, 210923881]

約数ペア:

[(1, 210923881), (7, 30131983), (49, 4304569), (97, 2174473), (199, 1059919), (223, 945847), (679, 310639), (1393, 151417), (1561, 135121), (4753, 44377), (9751, 21631), (10927, 19303)]