15621021

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7027}}^1$

素因数の和:7065

約数の個数: 24

約数和(自身を含む): 25581920

約数和(自身を除く): 9960899

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 741, 2223, 7027, 21081, 63243, 91351, 133513, 274053, 400539, 822159, 1201617, 1735669, 5207007, 15621021]

約数ペア:

[(1, 15621021), (3, 5207007), (9, 1735669), (13, 1201617), (19, 822159), (39, 400539), (57, 274053), (117, 133513), (171, 91351), (247, 63243), (741, 21081), (2223, 7027)]