28250222

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{137}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 57867264

約数和(自身を除く): 29617042

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 77, 91, 103, 137, 143, 154, 182, 206, 274, 286, 721, 959, 1001, 1133, 1339, 1442, 1507, 1781, 1918, 2002, 2266, 2678, 3014, 3562, 7931, 9373, 10549, 12467, 14111, 14729, 15862, 18746, 19591, 21098, 24934, 28222, 29458, 39182, 98777, 103103, 137137, 155221, 183443, 197554, 206206, 274274, 310442, 366886, 1086547, 1284101, 2017873, 2173094, 2568202, 4035746, 14125111, 28250222]

約数ペア:

[(1, 28250222), (2, 14125111), (7, 4035746), (11, 2568202), (13, 2173094), (14, 2017873), (22, 1284101), (26, 1086547), (77, 366886), (91, 310442), (103, 274274), (137, 206206), (143, 197554), (154, 183443), (182, 155221), (206, 137137), (274, 103103), (286, 98777), (721, 39182), (959, 29458), (1001, 28222), (1133, 24934), (1339, 21098), (1442, 19591), (1507, 18746), (1781, 15862), (1918, 14729), (2002, 14111), (2266, 12467), (2678, 10549), (3014, 9373), (3562, 7931)]