20764359

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:145

約数の個数: 72

約数和(自身を含む): 39940992

約数和(自身を除く): 19176633

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 83, 99, 133, 171, 209, 231, 249, 361, 399, 581, 627, 693, 747, 913, 1083, 1197, 1463, 1577, 1743, 1881, 2527, 2739, 3249, 3971, 4389, 4731, 5229, 6391, 7581, 8217, 11039, 11913, 13167, 14193, 17347, 19173, 22743, 27797, 29963, 33117, 35739, 52041, 57519, 83391, 89889, 99351, 121429, 156123, 209741, 250173, 269667, 329593, 364287, 629223, 988779, 1092861, 1887669, 2307151, 2966337, 6921453, 20764359]

約数ペア:

[(1, 20764359), (3, 6921453), (7, 2966337), (9, 2307151), (11, 1887669), (19, 1092861), (21, 988779), (33, 629223), (57, 364287), (63, 329593), (77, 269667), (83, 250173), (99, 209741), (133, 156123), (171, 121429), (209, 99351), (231, 89889), (249, 83391), (361, 57519), (399, 52041), (581, 35739), (627, 33117), (693, 29963), (747, 27797), (913, 22743), (1083, 19173), (1197, 17347), (1463, 14193), (1577, 13167), (1743, 11913), (1881, 11039), (2527, 8217), (2739, 7581), (3249, 6391), (3971, 5229), (4389, 4731)]