21758836

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{494519}}^1$

素因数の和:494534

約数の個数: 12

約数和(自身を含む): 41539680

約数和(自身を除く): 19780844

約数列:

[1, 2, 4, 11, 22, 44, 494519, 989038, 1978076, 5439709, 10879418, 21758836]

約数ペア:

[(1, 21758836), (2, 10879418), (4, 5439709), (11, 1978076), (22, 989038), (44, 494519)]