13987355

素因数分解:

$5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 18016992

約数和(自身を除く): 4029637

約数列:

[1, 5, 31, 41, 71, 155, 205, 355, 961, 1271, 2201, 2911, 4805, 6355, 11005, 14555, 39401, 68231, 90241, 197005, 341155, 451205, 2797471, 13987355]

約数ペア:

[(1, 13987355), (5, 2797471), (31, 451205), (41, 341155), (71, 197005), (155, 90241), (205, 68231), (355, 39401), (961, 14555), (1271, 11005), (2201, 6355), (2911, 4805)]