21522488

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15919}}^1$

素因数の和:15951

約数の個数: 24

約数和(自身を含む): 43700400

約数和(自身を除く): 22177912

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15919, 31838, 63676, 127352, 206947, 413894, 827788, 1655576, 2690311, 5380622, 10761244, 21522488]

約数ペア:

[(1, 21522488), (2, 10761244), (4, 5380622), (8, 2690311), (13, 1655576), (26, 827788), (52, 413894), (104, 206947), (169, 127352), (338, 63676), (676, 31838), (1352, 15919)]