21508113

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{193}}^1\times {\mathrm{307}}^1$

素因数の和:525

約数の個数: 24

約数和(自身を含む): 31788064

約数和(自身を除く): 10279951

約数列:

[1, 3, 11, 33, 121, 193, 307, 363, 579, 921, 2123, 3377, 6369, 10131, 23353, 37147, 59251, 70059, 111441, 177753, 651761, 1955283, 7169371, 21508113]

約数ペア:

[(1, 21508113), (3, 7169371), (11, 1955283), (33, 651761), (121, 177753), (193, 111441), (307, 70059), (363, 59251), (579, 37147), (921, 23353), (2123, 10131), (3377, 6369)]