31020003

素因数分解:

$3^4\times 7^1\times {\mathrm{54709}}^1$

素因数の和:54728

約数の個数: 20

約数和(自身を含む): 52959280

約数和(自身を除く): 21939277

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 54709, 164127, 382963, 492381, 1148889, 1477143, 3446667, 4431429, 10340001, 31020003]

約数ペア:

[(1, 31020003), (3, 10340001), (7, 4431429), (9, 3446667), (21, 1477143), (27, 1148889), (63, 492381), (81, 382963), (189, 164127), (567, 54709)]