21552213

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{2089}}^1$

素因数の和:2292

約数の個数: 16

約数和(自身を含む): 30430400

約数和(自身を除く): 8878187

約数列:

[1, 3, 19, 57, 181, 543, 2089, 3439, 6267, 10317, 39691, 119073, 378109, 1134327, 7184071, 21552213]

約数ペア:

[(1, 21552213), (3, 7184071), (19, 1134327), (57, 378109), (181, 119073), (543, 39691), (2089, 10317), (3439, 6267)]