1919781

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:322

約数の個数: 20

約数和(自身を含む): 2905452

約数和(自身を除く): 985671

約数列:

[1, 3, 9, 27, 81, 137, 173, 411, 519, 1233, 1557, 3699, 4671, 11097, 14013, 23701, 71103, 213309, 639927, 1919781]

約数ペア:

[(1, 1919781), (3, 639927), (9, 213309), (27, 71103), (81, 23701), (137, 14013), (173, 11097), (411, 4671), (519, 3699), (1233, 1557)]