19065555

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34594560

約数和(自身を除く): 15529005

約数列:

[1, 3, 5, 9, 15, 43, 45, 59, 129, 167, 177, 215, 295, 387, 501, 531, 645, 835, 885, 1503, 1935, 2505, 2537, 2655, 7181, 7515, 7611, 9853, 12685, 21543, 22833, 29559, 35905, 38055, 49265, 64629, 88677, 107715, 114165, 147795, 323145, 423679, 443385, 1271037, 2118395, 3813111, 6355185, 19065555]

約数ペア:

[(1, 19065555), (3, 6355185), (5, 3813111), (9, 2118395), (15, 1271037), (43, 443385), (45, 423679), (59, 323145), (129, 147795), (167, 114165), (177, 107715), (215, 88677), (295, 64629), (387, 49265), (501, 38055), (531, 35905), (645, 29559), (835, 22833), (885, 21543), (1503, 12685), (1935, 9853), (2505, 7611), (2537, 7515), (2655, 7181)]