20912103

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{4217}}^1$

素因数の和:4271

約数の個数: 24

約数和(自身を含む): 32900400

約数和(自身を除く): 11988297

約数列:

[1, 3, 9, 19, 29, 57, 87, 171, 261, 551, 1653, 4217, 4959, 12651, 37953, 80123, 122293, 240369, 366879, 721107, 1100637, 2323567, 6970701, 20912103]

約数ペア:

[(1, 20912103), (3, 6970701), (9, 2323567), (19, 1100637), (29, 721107), (57, 366879), (87, 240369), (171, 122293), (261, 80123), (551, 37953), (1653, 12651), (4217, 4959)]