20945855

素因数分解:

$5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1667}}^1$

素因数の和:2038

約数の個数: 16

約数和(自身を含む): 28823040

約数和(自身を除く): 7877185

約数列:

[1, 5, 7, 35, 359, 1667, 1795, 2513, 8335, 11669, 12565, 58345, 598453, 2992265, 4189171, 20945855]

約数ペア:

[(1, 20945855), (5, 4189171), (7, 2992265), (35, 598453), (359, 58345), (1667, 12565), (1795, 11669), (2513, 8335)]