21788816

素因数分解:

$2^4\times 7^1\times {\mathrm{194543}}^1$

素因数の和:194558

約数の個数: 20

約数和(自身を含む): 48246912

約数和(自身を除く): 26458096

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 194543, 389086, 778172, 1361801, 1556344, 2723602, 3112688, 5447204, 10894408, 21788816]

約数ペア:

[(1, 21788816), (2, 10894408), (4, 5447204), (7, 3112688), (8, 2723602), (14, 1556344), (16, 1361801), (28, 778172), (56, 389086), (112, 194543)]