28401429

素因数分解:

$3^1\times 7^4\times {\mathrm{3943}}^1$

素因数の和:3974

約数の個数: 20

約数和(自身を含む): 44188576

約数和(自身を除く): 15787147

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 3943, 7203, 11829, 27601, 82803, 193207, 579621, 1352449, 4057347, 9467143, 28401429]

約数ペア:

[(1, 28401429), (3, 9467143), (7, 4057347), (21, 1352449), (49, 579621), (147, 193207), (343, 82803), (1029, 27601), (2401, 11829), (3943, 7203)]