21978618

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{51593}}^1$

素因数の和:51669

約数の個数: 16

約数和(自身を含む): 44577216

約数和(自身を除く): 22598598

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 51593, 103186, 154779, 309558, 3663103, 7326206, 10989309, 21978618]

約数ペア:

[(1, 21978618), (2, 10989309), (3, 7326206), (6, 3663103), (71, 309558), (142, 154779), (213, 103186), (426, 51593)]