20385827

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:239

約数の個数: 32

約数和(自身を含む): 26763264

約数和(自身を除く): 6377437

約数列:

[1, 7, 11, 43, 47, 77, 131, 301, 329, 473, 517, 917, 1441, 2021, 3311, 3619, 5633, 6157, 10087, 14147, 22231, 39431, 43099, 61963, 67727, 155617, 264751, 433741, 474089, 1853257, 2912261, 20385827]

約数ペア:

[(1, 20385827), (7, 2912261), (11, 1853257), (43, 474089), (47, 433741), (77, 264751), (131, 155617), (301, 67727), (329, 61963), (473, 43099), (517, 39431), (917, 22231), (1441, 14147), (2021, 10087), (3311, 6157), (3619, 5633)]