17984978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 30578688

約数和(自身を除く): 12593710

約数列:

[1, 2, 11, 22, 41, 82, 127, 157, 254, 314, 451, 902, 1397, 1727, 2794, 3454, 5207, 6437, 10414, 12874, 19939, 39878, 57277, 70807, 114554, 141614, 219329, 438658, 817499, 1634998, 8992489, 17984978]

約数ペア:

[(1, 17984978), (2, 8992489), (11, 1634998), (22, 817499), (41, 438658), (82, 219329), (127, 141614), (157, 114554), (254, 70807), (314, 57277), (451, 39878), (902, 19939), (1397, 12874), (1727, 10414), (2794, 6437), (3454, 5207)]