199877891

素因数分解:

${\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:551

約数の個数: 24

約数和(自身を含む): 226566000

約数和(自身を除く): 26688109

約数列:

[1, 17, 19, 89, 289, 323, 409, 1513, 1691, 5491, 6953, 7771, 25721, 28747, 36401, 118201, 132107, 488699, 618817, 691619, 2245819, 10519889, 11757523, 199877891]

約数ペア:

[(1, 199877891), (17, 11757523), (19, 10519889), (89, 2245819), (289, 691619), (323, 618817), (409, 488699), (1513, 132107), (1691, 118201), (5491, 36401), (6953, 28747), (7771, 25721)]