21128294

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{7937}}^1$

素因数の和:7972

約数の個数: 16

約数和(自身を含む): 34863696

約数和(自身を除く): 13735402

約数列:

[1, 2, 11, 22, 121, 242, 1331, 2662, 7937, 15874, 87307, 174614, 960377, 1920754, 10564147, 21128294]

約数ペア:

[(1, 21128294), (2, 10564147), (11, 1920754), (22, 960377), (121, 174614), (242, 87307), (1331, 15874), (2662, 7937)]