81143937

素因数分解:

$3^4\times 7^1\times {\mathrm{143111}}^1$

素因数の和:143130

約数の個数: 20

約数和(自身を含む): 138532416

約数和(自身を除く): 57388479

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 143111, 429333, 1001777, 1287999, 3005331, 3863997, 9015993, 11591991, 27047979, 81143937]

約数ペア:

[(1, 81143937), (3, 27047979), (7, 11591991), (9, 9015993), (21, 3863997), (27, 3005331), (63, 1287999), (81, 1001777), (189, 429333), (567, 143111)]