15541981

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 20563200

約数和(自身を除く): 5021219

約数列:

[1, 7, 13, 19, 89, 91, 101, 133, 247, 623, 707, 1157, 1313, 1691, 1729, 1919, 8099, 8989, 9191, 11837, 13433, 21983, 24947, 62923, 116857, 153881, 170791, 174629, 817999, 1195537, 2220283, 15541981]

約数ペア:

[(1, 15541981), (7, 2220283), (13, 1195537), (19, 817999), (89, 174629), (91, 170791), (101, 153881), (133, 116857), (247, 62923), (623, 24947), (707, 21983), (1157, 13433), (1313, 11837), (1691, 9191), (1729, 8989), (1919, 8099)]