19912244

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41141}}^1$

素因数の和:41167

約数の個数: 18

約数和(自身を含む): 38303202

約数和(自身を除く): 18390958

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41141, 82282, 164564, 452551, 905102, 1810204, 4978061, 9956122, 19912244]

約数ペア:

[(1, 19912244), (2, 9956122), (4, 4978061), (11, 1810204), (22, 905102), (44, 452551), (121, 164564), (242, 82282), (484, 41141)]