20931724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{475721}}^1$

素因数の和:475736

約数の個数: 12

約数和(自身を含む): 39960648

約数和(自身を除く): 19028924

約数列:

[1, 2, 4, 11, 22, 44, 475721, 951442, 1902884, 5232931, 10465862, 20931724]

約数ペア:

[(1, 20931724), (2, 10465862), (4, 5232931), (11, 1902884), (22, 951442), (44, 475721)]