20386443

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 34933248

約数和(自身を除く): 14546805

約数列:

[1, 3, 7, 11, 21, 33, 71, 77, 113, 121, 213, 231, 339, 363, 497, 781, 791, 847, 1243, 1491, 2343, 2373, 2541, 3729, 5467, 8023, 8591, 8701, 13673, 16401, 24069, 25773, 26103, 41019, 56161, 60137, 88253, 95711, 168483, 180411, 264759, 287133, 617771, 970783, 1853313, 2912349, 6795481, 20386443]

約数ペア:

[(1, 20386443), (3, 6795481), (7, 2912349), (11, 1853313), (21, 970783), (33, 617771), (71, 287133), (77, 264759), (113, 180411), (121, 168483), (213, 95711), (231, 88253), (339, 60137), (363, 56161), (497, 41019), (781, 26103), (791, 25773), (847, 24069), (1243, 16401), (1491, 13673), (2343, 8701), (2373, 8591), (2541, 8023), (3729, 5467)]