21700701

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{2011}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 34525920

約数和(自身を除く): 12825219

約数列:

[1, 3, 9, 11, 33, 99, 109, 327, 981, 1199, 2011, 3597, 6033, 10791, 18099, 22121, 66363, 199089, 219199, 657597, 1972791, 2411189, 7233567, 21700701]

約数ペア:

[(1, 21700701), (3, 7233567), (9, 2411189), (11, 1972791), (33, 657597), (99, 219199), (109, 199089), (327, 66363), (981, 22121), (1199, 18099), (2011, 10791), (3597, 6033)]