19782135

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 38244960

約数和(自身を除く): 18462825

約数列:

[1, 3, 5, 9, 15, 17, 19, 45, 51, 57, 85, 95, 153, 171, 255, 285, 323, 765, 855, 969, 1361, 1615, 2907, 4083, 4845, 6805, 12249, 14535, 20415, 23137, 25859, 61245, 69411, 77577, 115685, 129295, 208233, 232731, 347055, 387885, 439603, 1041165, 1163655, 1318809, 2198015, 3956427, 6594045, 19782135]

約数ペア:

[(1, 19782135), (3, 6594045), (5, 3956427), (9, 2198015), (15, 1318809), (17, 1163655), (19, 1041165), (45, 439603), (51, 387885), (57, 347055), (85, 232731), (95, 208233), (153, 129295), (171, 115685), (255, 77577), (285, 69411), (323, 61245), (765, 25859), (855, 23137), (969, 20415), (1361, 14535), (1615, 12249), (2907, 6805), (4083, 4845)]