13865215

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{983}}^1$

素因数の和:1039

約数の個数: 32

約数和(自身を含む): 21159936

約数和(自身を除く): 7294721

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 983, 1085, 2015, 2821, 4915, 6881, 12779, 14105, 30473, 34405, 63895, 89453, 152365, 213311, 396149, 447265, 1066555, 1980745, 2773043, 13865215]

約数ペア:

[(1, 13865215), (5, 2773043), (7, 1980745), (13, 1066555), (31, 447265), (35, 396149), (65, 213311), (91, 152365), (155, 89453), (217, 63895), (403, 34405), (455, 30473), (983, 14105), (1085, 12779), (2015, 6881), (2821, 4915)]