21135177

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{9067}}^1$

素因数の和:9117

約数の個数: 24

約数和(自身を含む): 35836736

約数和(自身を除く): 14701559

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 9067, 27201, 63469, 81603, 190407, 335479, 571221, 1006437, 2348353, 3019311, 7045059, 21135177]

約数ペア:

[(1, 21135177), (3, 7045059), (7, 3019311), (9, 2348353), (21, 1006437), (37, 571221), (63, 335479), (111, 190407), (259, 81603), (333, 63469), (777, 27201), (2331, 9067)]