20581119

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3319}}^1$

素因数の和:3391

約数の個数: 24

約数和(自身を含む): 32628960

約数和(自身を除く): 12047841

約数列:

[1, 3, 9, 13, 39, 53, 117, 159, 477, 689, 2067, 3319, 6201, 9957, 29871, 43147, 129441, 175907, 388323, 527721, 1583163, 2286791, 6860373, 20581119]

約数ペア:

[(1, 20581119), (3, 6860373), (9, 2286791), (13, 1583163), (39, 527721), (53, 388323), (117, 175907), (159, 129441), (477, 43147), (689, 29871), (2067, 9957), (3319, 6201)]