1247643

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{211}}^1$

素因数の和:296

約数の個数: 20

約数和(自身を含む): 1898248

約数和(自身を除く): 650605

約数列:

[1, 3, 9, 27, 73, 81, 211, 219, 633, 657, 1899, 1971, 5697, 5913, 15403, 17091, 46209, 138627, 415881, 1247643]

約数ペア:

[(1, 1247643), (3, 415881), (9, 138627), (27, 46209), (73, 17091), (81, 15403), (211, 5913), (219, 5697), (633, 1971), (657, 1899)]