28541709

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{2503}}^1$

素因数の和:2697

約数の個数: 24

約数和(自身を含む): 47395712

約数和(自身を除く): 18854003

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 2503, 3801, 7509, 11403, 17521, 22527, 52563, 157689, 453043, 1359129, 3171301, 4077387, 9513903, 28541709]

約数ペア:

[(1, 28541709), (3, 9513903), (7, 4077387), (9, 3171301), (21, 1359129), (63, 453043), (181, 157689), (543, 52563), (1267, 22527), (1629, 17521), (2503, 11403), (3801, 7509)]