20982776

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{607}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 41040000

約数和(自身を除く): 20057224

約数列:

[1, 2, 4, 8, 29, 58, 116, 149, 232, 298, 596, 607, 1192, 1214, 2428, 4321, 4856, 8642, 17284, 17603, 34568, 35206, 70412, 90443, 140824, 180886, 361772, 723544, 2622847, 5245694, 10491388, 20982776]

約数ペア:

[(1, 20982776), (2, 10491388), (4, 5245694), (8, 2622847), (29, 723544), (58, 361772), (116, 180886), (149, 140824), (232, 90443), (298, 70412), (596, 35206), (607, 34568), (1192, 17603), (1214, 17284), (2428, 8642), (4321, 4856)]