21655556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{1049}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 40954200

約数和(自身を除く): 19298644

約数列:

[1, 2, 4, 13, 26, 52, 397, 794, 1049, 1588, 2098, 4196, 5161, 10322, 13637, 20644, 27274, 54548, 416453, 832906, 1665812, 5413889, 10827778, 21655556]

約数ペア:

[(1, 21655556), (2, 10827778), (4, 5413889), (13, 1665812), (26, 832906), (52, 416453), (397, 54548), (794, 27274), (1049, 20644), (1588, 13637), (2098, 10322), (4196, 5161)]