51191109

素因数分解:

$3^7\times {\mathrm{89}}^1\times {\mathrm{263}}^1$

素因数の和:373

約数の個数: 32

約数和(自身を含む): 77932800

約数和(自身を除く): 26741691

約数列:

[1, 3, 9, 27, 81, 89, 243, 263, 267, 729, 789, 801, 2187, 2367, 2403, 7101, 7209, 21303, 21627, 23407, 63909, 64881, 70221, 191727, 194643, 210663, 575181, 631989, 1895967, 5687901, 17063703, 51191109]

約数ペア:

[(1, 51191109), (3, 17063703), (9, 5687901), (27, 1895967), (81, 631989), (89, 575181), (243, 210663), (263, 194643), (267, 191727), (729, 70221), (789, 64881), (801, 63909), (2187, 23407), (2367, 21627), (2403, 21303), (7101, 7209)]