20692976

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1583}}^1$

素因数の和:1653

約数の個数: 40

約数和(自身を含む): 43211520

約数和(自身を除く): 22518544

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1583, 1634, 3166, 3268, 6332, 6536, 12664, 13072, 25328, 30077, 60154, 68069, 120308, 136138, 240616, 272276, 481232, 544552, 1089104, 1293311, 2586622, 5173244, 10346488, 20692976]

約数ペア:

[(1, 20692976), (2, 10346488), (4, 5173244), (8, 2586622), (16, 1293311), (19, 1089104), (38, 544552), (43, 481232), (76, 272276), (86, 240616), (152, 136138), (172, 120308), (304, 68069), (344, 60154), (688, 30077), (817, 25328), (1583, 13072), (1634, 12664), (3166, 6536), (3268, 6332)]