20887647

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17107}}^1$

素因数の和:17158

約数の個数: 16

約数和(自身を含む): 31204992

約数和(自身を除く): 10317345

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17107, 51321, 188177, 564531, 632959, 1898877, 6962549, 20887647]

約数ペア:

[(1, 20887647), (3, 6962549), (11, 1898877), (33, 632959), (37, 564531), (111, 188177), (407, 51321), (1221, 17107)]