20178368511

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1880381}}^1$

素因数の和:1880471

約数の個数: 24

約数和(自身を含む): 31725805104

約数和(自身を除く): 11547436593

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1533, 3577, 10731, 1880381, 5641143, 13162667, 39488001, 92138669, 137267813, 276416007, 411803439, 960874691, 2882624073, 6726122837, 20178368511]

約数ペア:

[(1, 20178368511), (3, 6726122837), (7, 2882624073), (21, 960874691), (49, 411803439), (73, 276416007), (147, 137267813), (219, 92138669), (511, 39488001), (1533, 13162667), (3577, 5641143), (10731, 1880381)]