618156981

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{28871}}^1$

素因数の和:28954

約数の個数: 32

約数和(自身を含む): 1002435840

約数和(自身を除く): 384278859

約数列:

[1, 3, 9, 13, 27, 39, 61, 117, 183, 351, 549, 793, 1647, 2379, 7137, 21411, 28871, 86613, 259839, 375323, 779517, 1125969, 1761131, 3377907, 5283393, 10133721, 15850179, 22894703, 47550537, 68684109, 206052327, 618156981]

約数ペア:

[(1, 618156981), (3, 206052327), (9, 68684109), (13, 47550537), (27, 22894703), (39, 15850179), (61, 10133721), (117, 5283393), (183, 3377907), (351, 1761131), (549, 1125969), (793, 779517), (1647, 375323), (2379, 259839), (7137, 86613), (21411, 28871)]