21079611

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1069}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 34941920

約数和(自身を除く): 13862309

約数列:

[1, 3, 7, 9, 21, 63, 313, 939, 1069, 2191, 2817, 3207, 6573, 7483, 9621, 19719, 22449, 67347, 334597, 1003791, 2342179, 3011373, 7026537, 21079611]

約数ペア:

[(1, 21079611), (3, 7026537), (7, 3011373), (9, 2342179), (21, 1003791), (63, 334597), (313, 67347), (939, 22449), (1069, 19719), (2191, 9621), (2817, 7483), (3207, 6573)]