16668747

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{2819}}^1$

素因数の和:2904

約数の個数: 20

約数和(自身を含む): 25250280

約数和(自身を除く): 8581533

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 2819, 5913, 8457, 25371, 76113, 205787, 228339, 617361, 1852083, 5556249, 16668747]

約数ペア:

[(1, 16668747), (3, 5556249), (9, 1852083), (27, 617361), (73, 228339), (81, 205787), (219, 76113), (657, 25371), (1971, 8457), (2819, 5913)]