18706947

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{21727}}^1$

素因数の和:21778

約数の個数: 16

約数和(自身を含む): 29202432

約数和(自身を除く): 10495485

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 21727, 65181, 152089, 456267, 890807, 2672421, 6235649, 18706947]

約数ペア:

[(1, 18706947), (3, 6235649), (7, 2672421), (21, 890807), (41, 456267), (123, 152089), (287, 65181), (861, 21727)]