81105409

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:445

約数の個数: 32

約数和(自身を含む): 105025536

約数和(自身を除く): 23920127

約数列:

[1, 7, 11, 47, 73, 77, 307, 329, 511, 517, 803, 2149, 3377, 3431, 3619, 5621, 14429, 22411, 23639, 24017, 37741, 101003, 156877, 158719, 246521, 264187, 1053317, 1111033, 1725647, 7373219, 11586487, 81105409]

約数ペア:

[(1, 81105409), (7, 11586487), (11, 7373219), (47, 1725647), (73, 1111033), (77, 1053317), (307, 264187), (329, 246521), (511, 158719), (517, 156877), (803, 101003), (2149, 37741), (3377, 24017), (3431, 23639), (3619, 22411), (5621, 14429)]