16905105

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 35544960

約数和(自身を除く): 18639855

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 67, 81, 89, 105, 135, 189, 201, 267, 315, 335, 405, 445, 469, 567, 603, 623, 801, 945, 1005, 1335, 1407, 1809, 1869, 2345, 2403, 2835, 3015, 3115, 4005, 4221, 5427, 5607, 5963, 7035, 7209, 9045, 9345, 12015, 12663, 16821, 17889, 21105, 27135, 28035, 29815, 36045, 37989, 41741, 50463, 53667, 63315, 84105, 89445, 125223, 161001, 189945, 208705, 252315, 268335, 375669, 483003, 626115, 805005, 1127007, 1878345, 2415015, 3381021, 5635035, 16905105]

約数ペア:

[(1, 16905105), (3, 5635035), (5, 3381021), (7, 2415015), (9, 1878345), (15, 1127007), (21, 805005), (27, 626115), (35, 483003), (45, 375669), (63, 268335), (67, 252315), (81, 208705), (89, 189945), (105, 161001), (135, 125223), (189, 89445), (201, 84105), (267, 63315), (315, 53667), (335, 50463), (405, 41741), (445, 37989), (469, 36045), (567, 29815), (603, 28035), (623, 27135), (801, 21105), (945, 17889), (1005, 16821), (1335, 12663), (1407, 12015), (1809, 9345), (1869, 9045), (2345, 7209), (2403, 7035), (2835, 5963), (3015, 5607), (3115, 5427), (4005, 4221)]