21012244

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477551}}^1$

素因数の和:477566

約数の個数: 12

約数和(自身を含む): 40114368

約数和(自身を除く): 19102124

約数列:

[1, 2, 4, 11, 22, 44, 477551, 955102, 1910204, 5253061, 10506122, 21012244]

約数ペア:

[(1, 21012244), (2, 10506122), (4, 5253061), (11, 1910204), (22, 955102), (44, 477551)]