19490415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 38568960

約数和(自身を除く): 19078545

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 61, 85, 105, 119, 179, 183, 255, 305, 357, 427, 537, 595, 895, 915, 1037, 1253, 1281, 1785, 2135, 2685, 3043, 3111, 3759, 5185, 6265, 6405, 7259, 9129, 10919, 15215, 15555, 18795, 21301, 21777, 32757, 36295, 45645, 54595, 63903, 76433, 106505, 108885, 163785, 185623, 229299, 319515, 382165, 556869, 928115, 1146495, 1299361, 2784345, 3898083, 6496805, 19490415]

約数ペア:

[(1, 19490415), (3, 6496805), (5, 3898083), (7, 2784345), (15, 1299361), (17, 1146495), (21, 928115), (35, 556869), (51, 382165), (61, 319515), (85, 229299), (105, 185623), (119, 163785), (179, 108885), (183, 106505), (255, 76433), (305, 63903), (357, 54595), (427, 45645), (537, 36295), (595, 32757), (895, 21777), (915, 21301), (1037, 18795), (1253, 15555), (1281, 15215), (1785, 10919), (2135, 9129), (2685, 7259), (3043, 6405), (3111, 6265), (3759, 5185)]