21925197

素因数分解:

$3^2\times 7^2\times {\mathrm{83}}^1\times {\mathrm{599}}^1$

素因数の和:702

約数の個数: 36

約数和(自身を含む): 37346400

約数和(自身を除く): 15421203

約数列:

[1, 3, 7, 9, 21, 49, 63, 83, 147, 249, 441, 581, 599, 747, 1743, 1797, 4067, 4193, 5229, 5391, 12201, 12579, 29351, 36603, 37737, 49717, 88053, 149151, 264159, 348019, 447453, 1044057, 2436133, 3132171, 7308399, 21925197]

約数ペア:

[(1, 21925197), (3, 7308399), (7, 3132171), (9, 2436133), (21, 1044057), (49, 447453), (63, 348019), (83, 264159), (147, 149151), (249, 88053), (441, 49717), (581, 37737), (599, 36603), (747, 29351), (1743, 12579), (1797, 12201), (4067, 5391), (4193, 5229)]