19199885

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{7789}}^1$

素因数の和:7840

約数の個数: 16

約数和(自身を含む): 25239600

約数和(自身を除く): 6039715

約数列:

[1, 5, 17, 29, 85, 145, 493, 2465, 7789, 38945, 132413, 225881, 662065, 1129405, 3839977, 19199885]

約数ペア:

[(1, 19199885), (5, 3839977), (17, 1129405), (29, 662065), (85, 225881), (145, 132413), (493, 38945), (2465, 7789)]