51991911

素因数分解:

$3^2\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{283}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 76424400

約数和(自身を除く): 24432489

約数列:

[1, 3, 9, 137, 149, 283, 411, 447, 849, 1233, 1341, 2547, 20413, 38771, 42167, 61239, 116313, 126501, 183717, 348939, 379503, 5776879, 17330637, 51991911]

約数ペア:

[(1, 51991911), (3, 17330637), (9, 5776879), (137, 379503), (149, 348939), (283, 183717), (411, 126501), (447, 116313), (849, 61239), (1233, 42167), (1341, 38771), (2547, 20413)]