18400683

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:567

約数の個数: 32

約数和(自身を含む): 29859840

約数和(自身を除く): 11459157

約数列:

[1, 3, 7, 19, 21, 57, 107, 133, 321, 399, 431, 749, 1293, 2033, 2247, 3017, 6099, 8189, 9051, 14231, 24567, 42693, 46117, 57323, 138351, 171969, 322819, 876223, 968457, 2628669, 6133561, 18400683]

約数ペア:

[(1, 18400683), (3, 6133561), (7, 2628669), (19, 968457), (21, 876223), (57, 322819), (107, 171969), (133, 138351), (321, 57323), (399, 46117), (431, 42693), (749, 24567), (1293, 14231), (2033, 9051), (2247, 8189), (3017, 6099)]