19705335

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{727}}^1$

素因数の和:887

約数の個数: 32

約数和(自身を含む): 34245120

約数和(自身を除く): 14539785

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 727, 1807, 2085, 2181, 3635, 5421, 9035, 9451, 10905, 27105, 28353, 47255, 101053, 141765, 303159, 505265, 1313689, 1515795, 3941067, 6568445, 19705335]

約数ペア:

[(1, 19705335), (3, 6568445), (5, 3941067), (13, 1515795), (15, 1313689), (39, 505265), (65, 303159), (139, 141765), (195, 101053), (417, 47255), (695, 28353), (727, 27105), (1807, 10905), (2085, 9451), (2181, 9035), (3635, 5421)]