20039851

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{79}}^2$

素因数の和:203

約数の個数: 18

約数和(自身を含む): 23134860

約数和(自身を除く): 3095009

約数列:

[1, 13, 19, 79, 169, 247, 1027, 1501, 3211, 6241, 13351, 19513, 81133, 118579, 253669, 1054729, 1541527, 20039851]

約数ペア:

[(1, 20039851), (13, 1541527), (19, 1054729), (79, 253669), (169, 118579), (247, 81133), (1027, 19513), (1501, 13351), (3211, 6241)]