15891239

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 21279240

約数和(自身を除く): 5388001

約数列:

[1, 7, 13, 19, 49, 91, 101, 133, 169, 247, 637, 707, 931, 1183, 1313, 1729, 1919, 3211, 4949, 8281, 9191, 12103, 13433, 17069, 22477, 24947, 64337, 94031, 119483, 157339, 174629, 324311, 836381, 1222403, 2270177, 15891239]

約数ペア:

[(1, 15891239), (7, 2270177), (13, 1222403), (19, 836381), (49, 324311), (91, 174629), (101, 157339), (133, 119483), (169, 94031), (247, 64337), (637, 24947), (707, 22477), (931, 17069), (1183, 13433), (1313, 12103), (1729, 9191), (1919, 8281), (3211, 4949)]