21145036

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480569}}^1$

素因数の和:480584

約数の個数: 12

約数和(自身を含む): 40367880

約数和(自身を除く): 19222844

約数列:

[1, 2, 4, 11, 22, 44, 480569, 961138, 1922276, 5286259, 10572518, 21145036]

約数ペア:

[(1, 21145036), (2, 10572518), (4, 5286259), (11, 1922276), (22, 961138), (44, 480569)]