20353892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{769}}^1$

素因数の和:1295

約数の個数: 24

約数和(自身を含む): 38484600

約数和(自身を除く): 18130708

約数列:

[1, 2, 4, 13, 26, 52, 509, 769, 1018, 1538, 2036, 3076, 6617, 9997, 13234, 19994, 26468, 39988, 391421, 782842, 1565684, 5088473, 10176946, 20353892]

約数ペア:

[(1, 20353892), (2, 10176946), (4, 5088473), (13, 1565684), (26, 782842), (52, 391421), (509, 39988), (769, 26468), (1018, 19994), (1538, 13234), (2036, 9997), (3076, 6617)]