17643997

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 20680704

約数和(自身を除く): 3036707

約数列:

[1, 7, 71, 131, 271, 497, 917, 1897, 9301, 19241, 35501, 65107, 134687, 248507, 2520571, 17643997]

約数ペア:

[(1, 17643997), (7, 2520571), (71, 248507), (131, 134687), (271, 65107), (497, 35501), (917, 19241), (1897, 9301)]