1309851

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:272

約数の個数: 20

約数和(自身を含む): 1988272

約数和(自身を除く): 678421

約数列:

[1, 3, 9, 27, 81, 103, 157, 309, 471, 927, 1413, 2781, 4239, 8343, 12717, 16171, 48513, 145539, 436617, 1309851]

約数ペア:

[(1, 1309851), (3, 436617), (9, 145539), (27, 48513), (81, 16171), (103, 12717), (157, 8343), (309, 4239), (471, 2781), (927, 1413)]