28112049

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 51609600

約数和(自身を除く): 23497551

約数列:

[1, 3, 7, 9, 21, 23, 27, 29, 63, 69, 87, 161, 189, 203, 207, 223, 261, 483, 609, 621, 667, 669, 783, 1449, 1561, 1827, 2001, 2007, 4347, 4669, 4683, 5129, 5481, 6003, 6021, 6467, 14007, 14049, 15387, 18009, 19401, 35903, 42021, 42147, 45269, 46161, 58203, 107709, 126063, 135807, 138483, 148741, 174609, 323127, 407421, 446223, 969381, 1041187, 1222263, 1338669, 3123561, 4016007, 9370683, 28112049]

約数ペア:

[(1, 28112049), (3, 9370683), (7, 4016007), (9, 3123561), (21, 1338669), (23, 1222263), (27, 1041187), (29, 969381), (63, 446223), (69, 407421), (87, 323127), (161, 174609), (189, 148741), (203, 138483), (207, 135807), (223, 126063), (261, 107709), (483, 58203), (609, 46161), (621, 45269), (667, 42147), (669, 42021), (783, 35903), (1449, 19401), (1561, 18009), (1827, 15387), (2001, 14049), (2007, 14007), (4347, 6467), (4669, 6021), (4683, 6003), (5129, 5481)]