20107129

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1759}}^1$

素因数の和:1860

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 4223111

約数列:

[1, 7, 23, 71, 161, 497, 1633, 1759, 11431, 12313, 40457, 124889, 283199, 874223, 2872447, 20107129]

約数ペア:

[(1, 20107129), (7, 2872447), (23, 874223), (71, 283199), (161, 124889), (497, 40457), (1633, 12313), (1759, 11431)]