19215651

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1193}}^1$

素因数の和:1275

約数の個数: 32

約数和(自身を含む): 32094720

約数和(自身を除く): 12879069

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 767, 1193, 1239, 2301, 3579, 5369, 8351, 15509, 16107, 25053, 46527, 70387, 108563, 211161, 325689, 492709, 915031, 1478127, 2745093, 6405217, 19215651]

約数ペア:

[(1, 19215651), (3, 6405217), (7, 2745093), (13, 1478127), (21, 915031), (39, 492709), (59, 325689), (91, 211161), (177, 108563), (273, 70387), (413, 46527), (767, 25053), (1193, 16107), (1239, 15509), (2301, 8351), (3579, 5369)]