51655737

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{3499}}^1$

素因数の和:3565

約数の個数: 32

約数和(自身を含む): 85120000

約数和(自身を除く): 33464263

約数列:

[1, 3, 7, 19, 21, 37, 57, 111, 133, 259, 399, 703, 777, 2109, 3499, 4921, 10497, 14763, 24493, 66481, 73479, 129463, 199443, 388389, 465367, 906241, 1396101, 2459797, 2718723, 7379391, 17218579, 51655737]

約数ペア:

[(1, 51655737), (3, 17218579), (7, 7379391), (19, 2718723), (21, 2459797), (37, 1396101), (57, 906241), (111, 465367), (133, 388389), (259, 199443), (399, 129463), (703, 73479), (777, 66481), (2109, 24493), (3499, 14763), (4921, 10497)]