1256408091

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{69557}}^1$

素因数の和:69792

約数の個数: 20

約数和(自身を含む): 1885300032

約数和(自身を除く): 628891941

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 6021, 18063, 69557, 208671, 626013, 1878039, 5634117, 15511211, 46533633, 139600899, 418802697, 1256408091]

約数ペア:

[(1, 1256408091), (3, 418802697), (9, 139600899), (27, 46533633), (81, 15511211), (223, 5634117), (669, 1878039), (2007, 626013), (6021, 208671), (18063, 69557)]