19962173

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1979}}^1$

素因数の和:2128

約数の個数: 16

約数和(自身を含む): 25090560

約数和(自身を除く): 5128387

約数列:

[1, 7, 11, 77, 131, 917, 1441, 1979, 10087, 13853, 21769, 152383, 259249, 1814743, 2851739, 19962173]

約数ペア:

[(1, 19962173), (7, 2851739), (11, 1814743), (77, 259249), (131, 152383), (917, 21769), (1441, 13853), (1979, 10087)]