199905839

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5581}}^1$

素因数の和:5655

約数の個数: 24

約数和(自身を含む): 251993808

約数和(自身を除く): 52087969

約数列:

[1, 7, 17, 43, 49, 119, 301, 731, 833, 2107, 5117, 5581, 35819, 39067, 94877, 239983, 273469, 664139, 1679881, 4079711, 4648973, 11759167, 28557977, 199905839]

約数ペア:

[(1, 199905839), (7, 28557977), (17, 11759167), (43, 4648973), (49, 4079711), (119, 1679881), (301, 664139), (731, 273469), (833, 239983), (2107, 94877), (5117, 39067), (5581, 35819)]