18353335

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 31288320

約数和(自身を除く): 12934985

約数列:

[1, 5, 7, 11, 13, 19, 35, 55, 65, 77, 91, 95, 133, 143, 193, 209, 247, 385, 455, 665, 715, 965, 1001, 1045, 1235, 1351, 1463, 1729, 2123, 2509, 2717, 3667, 5005, 6755, 7315, 8645, 10615, 12545, 13585, 14861, 17563, 18335, 19019, 25669, 27599, 40337, 47671, 74305, 87815, 95095, 128345, 137995, 193193, 201685, 238355, 282359, 333697, 524381, 965965, 1411795, 1668485, 2621905, 3670667, 18353335]

約数ペア:

[(1, 18353335), (5, 3670667), (7, 2621905), (11, 1668485), (13, 1411795), (19, 965965), (35, 524381), (55, 333697), (65, 282359), (77, 238355), (91, 201685), (95, 193193), (133, 137995), (143, 128345), (193, 95095), (209, 87815), (247, 74305), (385, 47671), (455, 40337), (665, 27599), (715, 25669), (965, 19019), (1001, 18335), (1045, 17563), (1235, 14861), (1351, 13585), (1463, 12545), (1729, 10615), (2123, 8645), (2509, 7315), (2717, 6755), (3667, 5005)]