19862108

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 21232036

約数列:

[1, 2, 4, 7, 14, 28, 71, 97, 103, 142, 194, 206, 284, 388, 412, 497, 679, 721, 994, 1358, 1442, 1988, 2716, 2884, 6887, 7313, 9991, 13774, 14626, 19982, 27548, 29252, 39964, 48209, 51191, 69937, 96418, 102382, 139874, 192836, 204764, 279748, 709361, 1418722, 2837444, 4965527, 9931054, 19862108]

約数ペア:

[(1, 19862108), (2, 9931054), (4, 4965527), (7, 2837444), (14, 1418722), (28, 709361), (71, 279748), (97, 204764), (103, 192836), (142, 139874), (194, 102382), (206, 96418), (284, 69937), (388, 51191), (412, 48209), (497, 39964), (679, 29252), (721, 27548), (994, 19982), (1358, 14626), (1442, 13774), (1988, 9991), (2716, 7313), (2884, 6887)]