19991248

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{33769}}^1$

素因数の和:33814

約数の個数: 20

約数和(自身を含む): 39781060

約数和(自身を除く): 19789812

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 33769, 67538, 135076, 270152, 540304, 1249453, 2498906, 4997812, 9995624, 19991248]

約数ペア:

[(1, 19991248), (2, 9995624), (4, 4997812), (8, 2498906), (16, 1249453), (37, 540304), (74, 270152), (148, 135076), (296, 67538), (592, 33769)]