816922341

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{138157}}^1$

素因数の和:138242

約数の個数: 20

約数和(自身を含む): 1237066732

約数和(自身を除く): 420144391

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 5913, 138157, 414471, 1243413, 3730239, 10085461, 11190717, 30256383, 90769149, 272307447, 816922341]

約数ペア:

[(1, 816922341), (3, 272307447), (9, 90769149), (27, 30256383), (73, 11190717), (81, 10085461), (219, 3730239), (657, 1243413), (1971, 414471), (5913, 138157)]