21608106

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1993}}^1$

素因数の和:2150

約数の個数: 32

約数和(自身を含む): 46898880

約数和(自身を除く): 25290774

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 139, 278, 417, 834, 1807, 1993, 3614, 3986, 5421, 5979, 10842, 11958, 25909, 51818, 77727, 155454, 277027, 554054, 831081, 1662162, 3601351, 7202702, 10804053, 21608106]

約数ペア:

[(1, 21608106), (2, 10804053), (3, 7202702), (6, 3601351), (13, 1662162), (26, 831081), (39, 554054), (78, 277027), (139, 155454), (278, 77727), (417, 51818), (834, 25909), (1807, 11958), (1993, 10842), (3614, 5979), (3986, 5421)]