20294919

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{271}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 30169152

約数和(自身を除く): 9874233

約数列:

[1, 3, 9, 53, 157, 159, 271, 471, 477, 813, 1413, 2439, 8321, 14363, 24963, 42547, 43089, 74889, 127641, 129267, 382923, 2254991, 6764973, 20294919]

約数ペア:

[(1, 20294919), (3, 6764973), (9, 2254991), (53, 382923), (157, 129267), (159, 127641), (271, 74889), (471, 43089), (477, 42547), (813, 24963), (1413, 14363), (2439, 8321)]