20500886

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2083}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 38012160

約数和(自身を除く): 17511274

約数列:

[1, 2, 7, 14, 19, 37, 38, 74, 133, 259, 266, 518, 703, 1406, 2083, 4166, 4921, 9842, 14581, 29162, 39577, 77071, 79154, 154142, 277039, 539497, 554078, 1078994, 1464349, 2928698, 10250443, 20500886]

約数ペア:

[(1, 20500886), (2, 10250443), (7, 2928698), (14, 1464349), (19, 1078994), (37, 554078), (38, 539497), (74, 277039), (133, 154142), (259, 79154), (266, 77071), (518, 39577), (703, 29162), (1406, 14581), (2083, 9842), (4166, 4921)]