27978027

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3907}}^1$

素因数の和:3959

約数の個数: 32

約数和(自身を含む): 48021504

約数和(自身を除く): 20043477

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 3907, 7161, 11721, 27349, 42977, 82047, 121117, 128931, 300839, 363351, 847819, 902517, 1332287, 2543457, 3996861, 9326009, 27978027]

約数ペア:

[(1, 27978027), (3, 9326009), (7, 3996861), (11, 2543457), (21, 1332287), (31, 902517), (33, 847819), (77, 363351), (93, 300839), (217, 128931), (231, 121117), (341, 82047), (651, 42977), (1023, 27349), (2387, 11721), (3907, 7161)]