31655421

素因数分解:

$3^3\times 7^2\times {\mathrm{71}}^1\times {\mathrm{337}}^1$

素因数の和:431

約数の個数: 48

約数和(自身を含む): 55486080

約数和(自身を除く): 23830659

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 71, 147, 189, 213, 337, 441, 497, 639, 1011, 1323, 1491, 1917, 2359, 3033, 3479, 4473, 7077, 9099, 10437, 13419, 16513, 21231, 23927, 31311, 49539, 63693, 71781, 93933, 148617, 167489, 215343, 445851, 502467, 646029, 1172423, 1507401, 3517269, 4522203, 10551807, 31655421]

約数ペア:

[(1, 31655421), (3, 10551807), (7, 4522203), (9, 3517269), (21, 1507401), (27, 1172423), (49, 646029), (63, 502467), (71, 445851), (147, 215343), (189, 167489), (213, 148617), (337, 93933), (441, 71781), (497, 63693), (639, 49539), (1011, 31311), (1323, 23927), (1491, 21231), (1917, 16513), (2359, 13419), (3033, 10437), (3479, 9099), (4473, 7077)]