21086770173

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^2\times {\mathrm{199193}}^1$

素因数の和:199345

約数の個数: 24

約数和(自身を含む): 32591325504

約数和(自身を除く): 11504555331

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 5041, 15123, 35287, 105861, 199193, 597579, 1394351, 4183053, 14142703, 42428109, 98998921, 296996763, 1004131913, 3012395739, 7028923391, 21086770173]

約数ペア:

[(1, 21086770173), (3, 7028923391), (7, 3012395739), (21, 1004131913), (71, 296996763), (213, 98998921), (497, 42428109), (1491, 14142703), (5041, 4183053), (15123, 1394351), (35287, 597579), (105861, 199193)]