21080554

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1481}}^1$

素因数の和:2141

約数の個数: 16

約数和(自身を含む): 34572096

約数和(自身を除く): 13491542

約数列:

[1, 2, 11, 22, 647, 1294, 1481, 2962, 7117, 14234, 16291, 32582, 958207, 1916414, 10540277, 21080554]

約数ペア:

[(1, 21080554), (2, 10540277), (11, 1916414), (22, 958207), (647, 32582), (1294, 16291), (1481, 14234), (2962, 7117)]