20163913

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1999}}^1$

素因数の和:2148

約数の個数: 16

約数和(自身を含む): 25344000

約数和(自身を除く): 5180087

約数列:

[1, 7, 11, 77, 131, 917, 1441, 1999, 10087, 13993, 21989, 153923, 261869, 1833083, 2880559, 20163913]

約数ペア:

[(1, 20163913), (7, 2880559), (11, 1833083), (77, 261869), (131, 153923), (917, 21989), (1441, 13993), (1999, 10087)]