20217490974

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{18121}}^1$

素因数の和:18303

約数の個数: 80

約数和(自身を含む): 46416386016

約数和(自身を除く): 26198895042

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 97, 142, 162, 194, 213, 291, 426, 582, 639, 873, 1278, 1746, 1917, 2619, 3834, 5238, 5751, 6887, 7857, 11502, 13774, 15714, 18121, 20661, 36242, 41322, 54363, 61983, 108726, 123966, 163089, 185949, 326178, 371898, 489267, 557847, 978534, 1115694, 1286591, 1467801, 1757737, 2573182, 2935602, 3515474, 3859773, 5273211, 7719546, 10546422, 11579319, 15819633, 23158638, 31639266, 34737957, 47458899, 69475914, 94917798, 104213871, 124799327, 142376697, 208427742, 249598654, 284753394, 374397981, 748795962, 1123193943, 2246387886, 3369581829, 6739163658, 10108745487, 20217490974]

約数ペア:

[(1, 20217490974), (2, 10108745487), (3, 6739163658), (6, 3369581829), (9, 2246387886), (18, 1123193943), (27, 748795962), (54, 374397981), (71, 284753394), (81, 249598654), (97, 208427742), (142, 142376697), (162, 124799327), (194, 104213871), (213, 94917798), (291, 69475914), (426, 47458899), (582, 34737957), (639, 31639266), (873, 23158638), (1278, 15819633), (1746, 11579319), (1917, 10546422), (2619, 7719546), (3834, 5273211), (5238, 3859773), (5751, 3515474), (6887, 2935602), (7857, 2573182), (11502, 1757737), (13774, 1467801), (15714, 1286591), (18121, 1115694), (20661, 978534), (36242, 557847), (41322, 489267), (54363, 371898), (61983, 326178), (108726, 185949), (123966, 163089)]