20195307

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1489}}^1$

素因数の和:1643

約数の個数: 24

約数和(自身を含む): 32076720

約数和(自身を除く): 11881413

約数列:

[1, 3, 9, 11, 33, 99, 137, 411, 1233, 1489, 1507, 4467, 4521, 13401, 13563, 16379, 49137, 147411, 203993, 611979, 1835937, 2243923, 6731769, 20195307]

約数ペア:

[(1, 20195307), (3, 6731769), (9, 2243923), (11, 1835937), (33, 611979), (99, 203993), (137, 147411), (411, 49137), (1233, 16379), (1489, 13563), (1507, 13401), (4467, 4521)]