31662891

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15919}}^1$

素因数の和:15955

約数の個数: 24

約数和(自身を含む): 52153920

約数和(自身を除く): 20491029

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 15919, 47757, 143271, 206947, 270623, 620841, 811869, 1862523, 2435607, 3518099, 10554297, 31662891]

約数ペア:

[(1, 31662891), (3, 10554297), (9, 3518099), (13, 2435607), (17, 1862523), (39, 811869), (51, 620841), (117, 270623), (153, 206947), (221, 143271), (663, 47757), (1989, 15919)]