21226359

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13127}}^1$

素因数の和:13155

約数の個数: 24

約数和(自身を含む): 35918208

約数和(自身を除く): 14691849

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13127, 39381, 91889, 144397, 275667, 433191, 643223, 1010779, 1929669, 3032337, 7075453, 21226359]

約数ペア:

[(1, 21226359), (3, 7075453), (7, 3032337), (11, 1929669), (21, 1010779), (33, 643223), (49, 433191), (77, 275667), (147, 144397), (231, 91889), (539, 39381), (1617, 13127)]