21496827

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 32497920

約数和(自身を除く): 11001093

約数列:

[1, 3, 11, 33, 59, 61, 177, 181, 183, 543, 649, 671, 1947, 1991, 2013, 3599, 5973, 10679, 10797, 11041, 32037, 33123, 39589, 117469, 118767, 121451, 352407, 364353, 651419, 1954257, 7165609, 21496827]

約数ペア:

[(1, 21496827), (3, 7165609), (11, 1954257), (33, 651419), (59, 364353), (61, 352407), (177, 121451), (181, 118767), (183, 117469), (543, 39589), (649, 33123), (671, 32037), (1947, 11041), (1991, 10797), (2013, 10679), (3599, 5973)]