213195521

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 292533120

約数和(自身を除く): 79337599

約数列:

[1, 7, 11, 17, 49, 53, 77, 119, 187, 371, 439, 539, 583, 833, 901, 1309, 2597, 3073, 4081, 4829, 6307, 7463, 9163, 9911, 21511, 23267, 28567, 33803, 44149, 52241, 69377, 82093, 162869, 236621, 255937, 365687, 395539, 485639, 574651, 1140083, 1791559, 2768773, 4022557, 4350929, 12540913, 19381411, 30456503, 213195521]

約数ペア:

[(1, 213195521), (7, 30456503), (11, 19381411), (17, 12540913), (49, 4350929), (53, 4022557), (77, 2768773), (119, 1791559), (187, 1140083), (371, 574651), (439, 485639), (539, 395539), (583, 365687), (833, 255937), (901, 236621), (1309, 162869), (2597, 82093), (3073, 69377), (4081, 52241), (4829, 44149), (6307, 33803), (7463, 28567), (9163, 23267), (9911, 21511)]