1971321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 32

約数和(自身を含む): 3096576

約数和(自身を除く): 1125255

約数列:

[1, 3, 11, 31, 33, 41, 47, 93, 123, 141, 341, 451, 517, 1023, 1271, 1353, 1457, 1551, 1927, 3813, 4371, 5781, 13981, 16027, 21197, 41943, 48081, 59737, 63591, 179211, 657107, 1971321]

約数ペア:

[(1, 1971321), (3, 657107), (11, 179211), (31, 63591), (33, 59737), (41, 48081), (47, 41943), (93, 21197), (123, 16027), (141, 13981), (341, 5781), (451, 4371), (517, 3813), (1023, 1927), (1271, 1551), (1353, 1457)]