19039405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2909}}^1$

素因数の和:2949

約数の個数: 32

約数和(自身を含む): 30170880

約数和(自身を除く): 11131475

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 2909, 6545, 14545, 20363, 31999, 49453, 101815, 159995, 223993, 247265, 346171, 543983, 1119965, 1730855, 2719915, 3807881, 19039405]

約数ペア:

[(1, 19039405), (5, 3807881), (7, 2719915), (11, 1730855), (17, 1119965), (35, 543983), (55, 346171), (77, 247265), (85, 223993), (119, 159995), (187, 101815), (385, 49453), (595, 31999), (935, 20363), (1309, 14545), (2909, 6545)]