20885427

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3301}}^1$

素因数の和:3363

約数の個数: 24

約数和(自身を含む): 32623760

約数和(自身を除く): 11738333

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 3301, 6327, 9903, 29709, 62719, 122137, 188157, 366411, 564471, 1099233, 2320603, 6961809, 20885427]

約数ペア:

[(1, 20885427), (3, 6961809), (9, 2320603), (19, 1099233), (37, 564471), (57, 366411), (111, 188157), (171, 122137), (333, 62719), (703, 29709), (2109, 9903), (3301, 6327)]