19999746

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{85469}}^1$

素因数の和:85490

約数の個数: 24

約数和(自身を含む): 46666620

約数和(自身を除く): 26666874

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 85469, 170938, 256407, 512814, 769221, 1111097, 1538442, 2222194, 3333291, 6666582, 9999873, 19999746]

約数ペア:

[(1, 19999746), (2, 9999873), (3, 6666582), (6, 3333291), (9, 2222194), (13, 1538442), (18, 1111097), (26, 769221), (39, 512814), (78, 256407), (117, 170938), (234, 85469)]