81506523

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{5521}}^1$

素因数の和:5587

約数の個数: 32

約数和(自身を含む): 134295040

約数和(自身を除く): 52788517

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 2109, 4921, 5521, 14763, 16563, 38647, 104899, 115941, 204277, 314697, 612831, 734293, 1429939, 2202879, 3881263, 4289817, 11643789, 27168841, 81506523]

約数ペア:

[(1, 81506523), (3, 27168841), (7, 11643789), (19, 4289817), (21, 3881263), (37, 2202879), (57, 1429939), (111, 734293), (133, 612831), (259, 314697), (399, 204277), (703, 115941), (777, 104899), (2109, 38647), (4921, 16563), (5521, 14763)]