20123169

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 10358751

約数列:

[1, 3, 11, 33, 41, 107, 123, 139, 321, 417, 451, 1177, 1353, 1529, 3531, 4387, 4587, 5699, 13161, 14873, 17097, 44619, 48257, 62689, 144771, 163603, 188067, 490809, 609793, 1829379, 6707723, 20123169]

約数ペア:

[(1, 20123169), (3, 6707723), (11, 1829379), (33, 609793), (41, 490809), (107, 188067), (123, 163603), (139, 144771), (321, 62689), (417, 48257), (451, 44619), (1177, 17097), (1353, 14873), (1529, 13161), (3531, 5699), (4387, 4587)]