788351697

素因数分解:

$3^4\times 7^1\times {\mathrm{1390391}}^1$

素因数の和:1390410

約数の個数: 20

約数和(自身を含む): 1345899456

約数和(自身を除く): 557547759

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 1390391, 4171173, 9732737, 12513519, 29198211, 37540557, 87594633, 112621671, 262783899, 788351697]

約数ペア:

[(1, 788351697), (3, 262783899), (7, 112621671), (9, 87594633), (21, 37540557), (27, 29198211), (63, 12513519), (81, 9732737), (189, 4171173), (567, 1390391)]