21788897104

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104754313}}^1$

素因数の和:104754334

約数の個数: 20

約数和(自身を含む): 45463372276

約数和(自身を除く): 23674475172

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104754313, 209508626, 419017252, 838034504, 1361806069, 1676069008, 2723612138, 5447224276, 10894448552, 21788897104]

約数ペア:

[(1, 21788897104), (2, 10894448552), (4, 5447224276), (8, 2723612138), (13, 1676069008), (16, 1361806069), (26, 838034504), (52, 419017252), (104, 209508626), (208, 104754313)]