20876658

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 26926734

約数列:

[1, 2, 3, 6, 11, 22, 33, 37, 66, 74, 83, 103, 111, 166, 206, 222, 249, 309, 407, 498, 618, 814, 913, 1133, 1221, 1826, 2266, 2442, 2739, 3071, 3399, 3811, 5478, 6142, 6798, 7622, 8549, 9213, 11433, 17098, 18426, 22866, 25647, 33781, 41921, 51294, 67562, 83842, 94039, 101343, 125763, 188078, 202686, 251526, 282117, 316313, 564234, 632626, 948939, 1897878, 3479443, 6958886, 10438329, 20876658]

約数ペア:

[(1, 20876658), (2, 10438329), (3, 6958886), (6, 3479443), (11, 1897878), (22, 948939), (33, 632626), (37, 564234), (66, 316313), (74, 282117), (83, 251526), (103, 202686), (111, 188078), (166, 125763), (206, 101343), (222, 94039), (249, 83842), (309, 67562), (407, 51294), (498, 41921), (618, 33781), (814, 25647), (913, 22866), (1133, 18426), (1221, 17098), (1826, 11433), (2266, 9213), (2442, 8549), (2739, 7622), (3071, 6798), (3399, 6142), (3811, 5478)]