261567319

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{28621}}^1$

素因数の和:28690

約数の個数: 16

約数和(自身を含む): 304538080

約数和(自身を除く): 42970761

約数列:

[1, 13, 19, 37, 247, 481, 703, 9139, 28621, 372073, 543799, 1058977, 7069387, 13766701, 20120563, 261567319]

約数ペア:

[(1, 261567319), (13, 20120563), (19, 13766701), (37, 7069387), (247, 1058977), (481, 543799), (703, 372073), (9139, 28621)]