20522621

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 25707456

約数和(自身を除く): 5184835

約数列:

[1, 7, 17, 49, 71, 119, 347, 497, 833, 1207, 2429, 3479, 5899, 8449, 17003, 24637, 41293, 59143, 172459, 289051, 418829, 1207213, 2931803, 20522621]

約数ペア:

[(1, 20522621), (7, 2931803), (17, 1207213), (49, 418829), (71, 289051), (119, 172459), (347, 59143), (497, 41293), (833, 24637), (1207, 17003), (2429, 8449), (3479, 5899)]