28451943

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:248

約数の個数: 48

約数和(自身を含む): 47087040

約数和(自身を除く): 18635097

約数列:

[1, 3, 9, 13, 23, 39, 69, 97, 109, 117, 207, 291, 299, 327, 873, 897, 981, 1261, 1417, 2231, 2507, 2691, 3783, 4251, 6693, 7521, 10573, 11349, 12753, 20079, 22563, 29003, 31719, 32591, 87009, 95157, 97773, 137449, 243179, 261027, 293319, 412347, 729537, 1237041, 2188611, 3161327, 9483981, 28451943]

約数ペア:

[(1, 28451943), (3, 9483981), (9, 3161327), (13, 2188611), (23, 1237041), (39, 729537), (69, 412347), (97, 293319), (109, 261027), (117, 243179), (207, 137449), (291, 97773), (299, 95157), (327, 87009), (873, 32591), (897, 31719), (981, 29003), (1261, 22563), (1417, 20079), (2231, 12753), (2507, 11349), (2691, 10573), (3783, 7521), (4251, 6693)]