21064347

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{6143}}^1$

素因数の和:6279

約数の個数: 16

約数和(自身を含む): 31457280

約数和(自身を除く): 10392933

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 6143, 18429, 55287, 165861, 780161, 2340483, 7021449, 21064347]

約数ペア:

[(1, 21064347), (3, 7021449), (9, 2340483), (27, 780161), (127, 165861), (381, 55287), (1143, 18429), (3429, 6143)]