81553802

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{26669}}^1$

素因数の和:26821

約数の個数: 16

約数和(自身を含む): 134416800

約数和(自身を除く): 52862998

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 26669, 53338, 293359, 586718, 3706991, 7413982, 40776901, 81553802]

約数ペア:

[(1, 81553802), (2, 40776901), (11, 7413982), (22, 3706991), (139, 586718), (278, 293359), (1529, 53338), (3058, 26669)]