21297456

素因数分解:

$2^4\times 3^2\times {\mathrm{131}}^1\times {\mathrm{1129}}^1$

素因数の和:1274

約数の個数: 60

約数和(自身を含む): 60111480

約数和(自身を除く): 38814024

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 131, 144, 262, 393, 524, 786, 1048, 1129, 1179, 1572, 2096, 2258, 2358, 3144, 3387, 4516, 4716, 6288, 6774, 9032, 9432, 10161, 13548, 18064, 18864, 20322, 27096, 40644, 54192, 81288, 147899, 162576, 295798, 443697, 591596, 887394, 1183192, 1331091, 1774788, 2366384, 2662182, 3549576, 5324364, 7099152, 10648728, 21297456]

約数ペア:

[(1, 21297456), (2, 10648728), (3, 7099152), (4, 5324364), (6, 3549576), (8, 2662182), (9, 2366384), (12, 1774788), (16, 1331091), (18, 1183192), (24, 887394), (36, 591596), (48, 443697), (72, 295798), (131, 162576), (144, 147899), (262, 81288), (393, 54192), (524, 40644), (786, 27096), (1048, 20322), (1129, 18864), (1179, 18064), (1572, 13548), (2096, 10161), (2258, 9432), (2358, 9032), (3144, 6774), (3387, 6288), (4516, 4716)]