21865396

素因数分解:

$2^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{2903}}^1$

素因数の和:3183

約数の個数: 24

約数和(自身を含む): 43908480

約数和(自身を除く): 22043084

約数列:

[1, 2, 4, 7, 14, 28, 269, 538, 1076, 1883, 2903, 3766, 5806, 7532, 11612, 20321, 40642, 81284, 780907, 1561814, 3123628, 5466349, 10932698, 21865396]

約数ペア:

[(1, 21865396), (2, 10932698), (4, 5466349), (7, 3123628), (14, 1561814), (28, 780907), (269, 81284), (538, 40642), (1076, 20321), (1883, 11612), (2903, 7532), (3766, 5806)]