18996903

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{1949}}^1$

素因数の和:1996

約数の個数: 24

約数和(自身を含む): 29718000

約数和(自身を除く): 10721097

約数列:

[1, 3, 9, 19, 27, 57, 171, 361, 513, 1083, 1949, 3249, 5847, 9747, 17541, 37031, 52623, 111093, 333279, 703589, 999837, 2110767, 6332301, 18996903]

約数ペア:

[(1, 18996903), (3, 6332301), (9, 2110767), (19, 999837), (27, 703589), (57, 333279), (171, 111093), (361, 52623), (513, 37031), (1083, 17541), (1949, 9747), (3249, 5847)]