21103478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{2531}}^1$

素因数の和:2923

約数の個数: 16

約数和(自身を含む): 34637760

約数和(自身を除く): 13534282

約数列:

[1, 2, 11, 22, 379, 758, 2531, 4169, 5062, 8338, 27841, 55682, 959249, 1918498, 10551739, 21103478]

約数ペア:

[(1, 21103478), (2, 10551739), (11, 1918498), (22, 959249), (379, 55682), (758, 27841), (2531, 8338), (4169, 5062)]