20189151

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:455

約数の個数: 24

約数和(自身を含む): 29961360

約数和(自身を除く): 9772209

約数列:

[1, 3, 9, 59, 177, 193, 197, 531, 579, 591, 1737, 1773, 11387, 11623, 34161, 34869, 38021, 102483, 104607, 114063, 342189, 2243239, 6729717, 20189151]

約数ペア:

[(1, 20189151), (3, 6729717), (9, 2243239), (59, 342189), (177, 114063), (193, 104607), (197, 102483), (531, 38021), (579, 34869), (591, 34161), (1737, 11623), (1773, 11387)]