21904891

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{929}}^1$

素因数の和:1038

約数の個数: 16

約数和(自身を含む): 24775200

約数和(自身を除く): 2870309

約数列:

[1, 17, 19, 73, 323, 929, 1241, 1387, 15793, 17651, 23579, 67817, 300067, 1152889, 1288523, 21904891]

約数ペア:

[(1, 21904891), (17, 1288523), (19, 1152889), (73, 300067), (323, 67817), (929, 23579), (1241, 17651), (1387, 15793)]