20217085

素因数分解:

$5^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{1609}}^1$

素因数の和:1980

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 7603715

約数列:

[1, 5, 7, 35, 359, 1609, 1795, 2513, 8045, 11263, 12565, 56315, 577631, 2888155, 4043417, 20217085]

約数ペア:

[(1, 20217085), (5, 4043417), (7, 2888155), (35, 577631), (359, 56315), (1609, 12565), (1795, 11263), (2513, 8045)]