21410565

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{449}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 39787200

約数和(自身を除く): 18376635

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 289, 449, 561, 867, 935, 1347, 1445, 2245, 2805, 3179, 4335, 4939, 6735, 7633, 9537, 14817, 15895, 22899, 24695, 38165, 47685, 74085, 83963, 114495, 129761, 251889, 389283, 419815, 648805, 1259445, 1427371, 1946415, 4282113, 7136855, 21410565]

約数ペア:

[(1, 21410565), (3, 7136855), (5, 4282113), (11, 1946415), (15, 1427371), (17, 1259445), (33, 648805), (51, 419815), (55, 389283), (85, 251889), (165, 129761), (187, 114495), (255, 83963), (289, 74085), (449, 47685), (561, 38165), (867, 24695), (935, 22899), (1347, 15895), (1445, 14817), (2245, 9537), (2805, 7633), (3179, 6735), (4335, 4939)]