20785226

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1130

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18405814

約数列:

[1, 2, 7, 11, 14, 22, 77, 139, 154, 278, 971, 973, 1529, 1942, 1946, 3058, 6797, 10681, 10703, 13594, 21362, 21406, 74767, 134969, 149534, 269938, 944783, 1484659, 1889566, 2969318, 10392613, 20785226]

約数ペア:

[(1, 20785226), (2, 10392613), (7, 2969318), (11, 1889566), (14, 1484659), (22, 944783), (77, 269938), (139, 149534), (154, 134969), (278, 74767), (971, 21406), (973, 21362), (1529, 13594), (1942, 10703), (1946, 10681), (3058, 6797)]