20005139

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3559}}^1$

素因数の和:3650

約数の個数: 16

約数和(自身を含む): 25290240

約数和(自身を除く): 5285101

約数列:

[1, 7, 11, 73, 77, 511, 803, 3559, 5621, 24913, 39149, 259807, 274043, 1818649, 2857877, 20005139]

約数ペア:

[(1, 20005139), (7, 2857877), (11, 1818649), (73, 274043), (77, 259807), (511, 39149), (803, 24913), (3559, 5621)]