18239613

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{977}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 28541952

約数和(自身を除く): 10302339

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 977, 2667, 2931, 6223, 6839, 18669, 20517, 47873, 124079, 143619, 372237, 868553, 2605659, 6079871, 18239613]

約数ペア:

[(1, 18239613), (3, 6079871), (7, 2605659), (21, 868553), (49, 372237), (127, 143619), (147, 124079), (381, 47873), (889, 20517), (977, 18669), (2667, 6839), (2931, 6223)]