15787989

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1913}}^1$

素因数の和:2057

約数の個数: 24

約数和(自身を含む): 26275392

約数和(自身を除く): 10487403

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 1913, 2751, 5739, 8253, 13391, 17217, 40173, 120519, 250603, 751809, 1754221, 2255427, 5262663, 15787989]

約数ペア:

[(1, 15787989), (3, 5262663), (7, 2255427), (9, 1754221), (21, 751809), (63, 250603), (131, 120519), (393, 40173), (917, 17217), (1179, 13391), (1913, 8253), (2751, 5739)]