19511490551

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{11789}}^1$

素因数の和:12119

約数の個数: 32

約数和(自身を含む): 23904460800

約数和(自身を除く): 4392970249

約数列:

[1, 7, 29, 31, 203, 217, 263, 899, 1841, 6293, 7627, 8153, 11789, 53389, 57071, 82523, 236437, 341881, 365459, 1655059, 2393167, 2558213, 3100507, 10598311, 21703549, 74188177, 89914703, 96115717, 629402921, 672810019, 2787355793, 19511490551]

約数ペア:

[(1, 19511490551), (7, 2787355793), (29, 672810019), (31, 629402921), (203, 96115717), (217, 89914703), (263, 74188177), (899, 21703549), (1841, 10598311), (6293, 3100507), (7627, 2558213), (8153, 2393167), (11789, 1655059), (53389, 365459), (57071, 341881), (82523, 236437)]