309447

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:239

約数の個数: 16

約数和(自身を含む): 467680

約数和(自身を除く): 158233

約数列:

[1, 3, 9, 27, 73, 157, 219, 471, 657, 1413, 1971, 4239, 11461, 34383, 103149, 309447]

約数ペア:

[(1, 309447), (3, 103149), (9, 34383), (27, 11461), (73, 4239), (157, 1971), (219, 1413), (471, 657)]