17947761

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 27699840

約数和(自身を除く): 9752079

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 457, 689, 741, 1007, 1371, 2067, 3021, 5941, 8683, 13091, 17823, 24221, 26049, 39273, 72663, 112879, 314873, 338637, 460199, 944619, 1380597, 5982587, 17947761]

約数ペア:

[(1, 17947761), (3, 5982587), (13, 1380597), (19, 944619), (39, 460199), (53, 338637), (57, 314873), (159, 112879), (247, 72663), (457, 39273), (689, 26049), (741, 24221), (1007, 17823), (1371, 13091), (2067, 8683), (3021, 5941)]