18961227

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:499

約数の個数: 24

約数和(自身を含む): 28214784

約数和(自身を除く): 9253557

約数列:

[1, 3, 9, 53, 127, 159, 313, 381, 477, 939, 1143, 2817, 6731, 16589, 20193, 39751, 49767, 60579, 119253, 149301, 357759, 2106803, 6320409, 18961227]

約数ペア:

[(1, 18961227), (3, 6320409), (9, 2106803), (53, 357759), (127, 149301), (159, 119253), (313, 60579), (381, 49767), (477, 39751), (939, 20193), (1143, 16589), (2817, 6731)]