21423897

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:322

約数の個数: 36

約数和(自身を含む): 34524672

約数和(自身を除く): 13100775

約数列:

[1, 3, 9, 11, 33, 99, 103, 121, 191, 309, 363, 573, 927, 1089, 1133, 1719, 2101, 3399, 6303, 10197, 12463, 18909, 19673, 23111, 37389, 59019, 69333, 112167, 177057, 207999, 216403, 649209, 1947627, 2380433, 7141299, 21423897]

約数ペア:

[(1, 21423897), (3, 7141299), (9, 2380433), (11, 1947627), (33, 649209), (99, 216403), (103, 207999), (121, 177057), (191, 112167), (309, 69333), (363, 59019), (573, 37389), (927, 23111), (1089, 19673), (1133, 18909), (1719, 12463), (2101, 10197), (3399, 6303)]