28689297

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5531}}^1$

素因数の和:5573

約数の個数: 32

約数和(自身を含む): 49566720

約数和(自身を除く): 20877423

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 5531, 16593, 38717, 71903, 105089, 116151, 215709, 315267, 503321, 735623, 1366157, 1509963, 2206869, 4098471, 9563099, 28689297]

約数ペア:

[(1, 28689297), (3, 9563099), (7, 4098471), (13, 2206869), (19, 1509963), (21, 1366157), (39, 735623), (57, 503321), (91, 315267), (133, 215709), (247, 116151), (273, 105089), (399, 71903), (741, 38717), (1729, 16593), (5187, 5531)]