21610864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122789}}^1$

素因数の和:122808

約数の個数: 20

約数和(自身を含む): 45677880

約数和(自身を除く): 24067016

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122789, 245578, 491156, 982312, 1350679, 1964624, 2701358, 5402716, 10805432, 21610864]

約数ペア:

[(1, 21610864), (2, 10805432), (4, 5402716), (8, 2701358), (11, 1964624), (16, 1350679), (22, 982312), (44, 491156), (88, 245578), (176, 122789)]