680319

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{227}}^1$

素因数の和:276

約数の個数: 20

約数和(自身を含む): 1048344

約数和(自身を除く): 368025

約数列:

[1, 3, 9, 27, 37, 81, 111, 227, 333, 681, 999, 2043, 2997, 6129, 8399, 18387, 25197, 75591, 226773, 680319]

約数ペア:

[(1, 680319), (3, 226773), (9, 75591), (27, 25197), (37, 18387), (81, 8399), (111, 6129), (227, 2997), (333, 2043), (681, 999)]