1918186907

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 2527838208

約数和(自身を除く): 609651301

約数列:

[1, 7, 13, 31, 61, 71, 91, 157, 217, 403, 427, 497, 793, 923, 1099, 1891, 2041, 2201, 2821, 4331, 4867, 5551, 6461, 9577, 11147, 13237, 14287, 15407, 24583, 28613, 30317, 34069, 56303, 63271, 67039, 78029, 124501, 134261, 144911, 172081, 200291, 296887, 345557, 394121, 442897, 679967, 871507, 939827, 1014377, 1745393, 2078209, 2418899, 3859531, 4492241, 4759769, 8839571, 12217751, 21078977, 27016717, 31445687, 61876997, 147552839, 274026701, 1918186907]

約数ペア:

[(1, 1918186907), (7, 274026701), (13, 147552839), (31, 61876997), (61, 31445687), (71, 27016717), (91, 21078977), (157, 12217751), (217, 8839571), (403, 4759769), (427, 4492241), (497, 3859531), (793, 2418899), (923, 2078209), (1099, 1745393), (1891, 1014377), (2041, 939827), (2201, 871507), (2821, 679967), (4331, 442897), (4867, 394121), (5551, 345557), (6461, 296887), (9577, 200291), (11147, 172081), (13237, 144911), (14287, 134261), (15407, 124501), (24583, 78029), (28613, 67039), (30317, 63271), (34069, 56303)]