20918859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{673}}^1\times {\mathrm{797}}^1$

素因数の和:1486

約数の個数: 16

約数和(自身を含む): 30119712

約数和(自身を除く): 9200853

約数列:

[1, 3, 13, 39, 673, 797, 2019, 2391, 8749, 10361, 26247, 31083, 536381, 1609143, 6972953, 20918859]

約数ペア:

[(1, 20918859), (3, 6972953), (13, 1609143), (39, 536381), (673, 31083), (797, 26247), (2019, 10361), (2391, 8749)]