78163947

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{13219}}^1$

素因数の和:13304

約数の個数: 20

約数和(自身を含む): 118371880

約数和(自身を除く): 40207933

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 13219, 39657, 118971, 356913, 964987, 1070739, 2894961, 8684883, 26054649, 78163947]

約数ペア:

[(1, 78163947), (3, 26054649), (9, 8684883), (27, 2894961), (73, 1070739), (81, 964987), (219, 356913), (657, 118971), (1971, 39657), (5913, 13219)]