21381263445

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:755

約数の個数: 128

約数和(自身を含む): 38311004160

約数和(自身を除く): 16929740715

約数列:

[1, 3, 5, 15, 19, 37, 53, 57, 67, 95, 111, 159, 185, 201, 265, 285, 335, 555, 571, 703, 795, 1005, 1007, 1273, 1713, 1961, 2109, 2479, 2855, 3021, 3515, 3551, 3819, 5035, 5883, 6365, 7437, 8565, 9805, 10545, 10653, 10849, 12395, 15105, 17755, 19095, 21127, 29415, 30263, 32547, 37185, 37259, 38257, 47101, 53265, 54245, 63381, 67469, 90789, 105635, 111777, 114771, 131387, 141303, 151315, 162735, 186295, 191285, 202407, 235505, 316905, 337345, 394161, 401413, 453945, 558885, 573855, 574997, 656935, 706515, 726883, 1012035, 1119731, 1204239, 1415509, 1724991, 1970805, 2007065, 2027621, 2180649, 2496353, 2874985, 3359193, 3634415, 4246527, 5598655, 6021195, 6082863, 7077545, 7489059, 8624955, 10138105, 10903245, 12481765, 16795965, 21232635, 21274889, 26894671, 30414315, 37445295, 38524799, 63824667, 75021977, 80684013, 106374445, 115574397, 134473355, 192623995, 225065931, 319123335, 375109885, 403420065, 577871985, 1125329655, 1425417563, 4276252689, 7127087815, 21381263445]

約数ペア:

[(1, 21381263445), (3, 7127087815), (5, 4276252689), (15, 1425417563), (19, 1125329655), (37, 577871985), (53, 403420065), (57, 375109885), (67, 319123335), (95, 225065931), (111, 192623995), (159, 134473355), (185, 115574397), (201, 106374445), (265, 80684013), (285, 75021977), (335, 63824667), (555, 38524799), (571, 37445295), (703, 30414315), (795, 26894671), (1005, 21274889), (1007, 21232635), (1273, 16795965), (1713, 12481765), (1961, 10903245), (2109, 10138105), (2479, 8624955), (2855, 7489059), (3021, 7077545), (3515, 6082863), (3551, 6021195), (3819, 5598655), (5035, 4246527), (5883, 3634415), (6365, 3359193), (7437, 2874985), (8565, 2496353), (9805, 2180649), (10545, 2027621), (10653, 2007065), (10849, 1970805), (12395, 1724991), (15105, 1415509), (17755, 1204239), (19095, 1119731), (21127, 1012035), (29415, 726883), (30263, 706515), (32547, 656935), (37185, 574997), (37259, 573855), (38257, 558885), (47101, 453945), (53265, 401413), (54245, 394161), (63381, 337345), (67469, 316905), (90789, 235505), (105635, 202407), (111777, 191285), (114771, 186295), (131387, 162735), (141303, 151315)]