21724087

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 29491200

約数和(自身を除く): 7767113

約数列:

[1, 7, 11, 19, 31, 77, 133, 209, 217, 341, 479, 589, 1463, 2387, 3353, 4123, 5269, 6479, 9101, 14849, 36883, 45353, 63707, 100111, 103943, 163339, 282131, 700777, 1143373, 1974917, 3103441, 21724087]

約数ペア:

[(1, 21724087), (7, 3103441), (11, 1974917), (19, 1143373), (31, 700777), (77, 282131), (133, 163339), (209, 103943), (217, 100111), (341, 63707), (479, 45353), (589, 36883), (1463, 14849), (2387, 9101), (3353, 6479), (4123, 5269)]