21004797

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{1307}}^1$

素因数の和:1808

約数の個数: 16

約数和(自身を含む): 30638592

約数和(自身を除く): 9633795

約数列:

[1, 3, 11, 33, 487, 1307, 1461, 3921, 5357, 14377, 16071, 43131, 636509, 1909527, 7001599, 21004797]

約数ペア:

[(1, 21004797), (3, 7001599), (11, 1909527), (33, 636509), (487, 43131), (1307, 16071), (1461, 14377), (3921, 5357)]