1991231158

素因数分解:

$2^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{701}}^1\times {\mathrm{1481}}^1$

素因数の和:2328

約数の個数: 32

約数和(自身を含む): 3445685568

約数和(自身を除く): 1454454410

約数列:

[1, 2, 7, 14, 137, 274, 701, 959, 1402, 1481, 1918, 2962, 4907, 9814, 10367, 20734, 96037, 192074, 202897, 405794, 672259, 1038181, 1344518, 1420279, 2076362, 2840558, 7267267, 14534534, 142230797, 284461594, 995615579, 1991231158]

約数ペア:

[(1, 1991231158), (2, 995615579), (7, 284461594), (14, 142230797), (137, 14534534), (274, 7267267), (701, 2840558), (959, 2076362), (1402, 1420279), (1481, 1344518), (1918, 1038181), (2962, 672259), (4907, 405794), (9814, 202897), (10367, 192074), (20734, 96037)]