19705816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{189479}}^1$

素因数の和:189498

約数の個数: 16

約数和(自身を含む): 39790800

約数和(自身を除く): 20084984

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 189479, 378958, 757916, 1515832, 2463227, 4926454, 9852908, 19705816]

約数ペア:

[(1, 19705816), (2, 9852908), (4, 4926454), (8, 2463227), (13, 1515832), (26, 757916), (52, 378958), (104, 189479)]