20458669

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 26966016

約数和(自身を除く): 6507347

約数列:

[1, 7, 11, 37, 43, 77, 167, 259, 301, 407, 473, 1169, 1591, 1837, 2849, 3311, 6179, 7181, 11137, 12859, 17501, 43253, 50267, 67969, 78991, 122507, 265697, 475783, 552937, 1859879, 2922667, 20458669]

約数ペア:

[(1, 20458669), (7, 2922667), (11, 1859879), (37, 552937), (43, 475783), (77, 265697), (167, 122507), (259, 78991), (301, 67969), (407, 50267), (473, 43253), (1169, 17501), (1591, 12859), (1837, 11137), (2849, 7181), (3311, 6179)]