20281023

素因数分解:

$3^5\times 7^1\times {\mathrm{11923}}^1$

素因数の和:11945

約数の個数: 24

約数和(自身を含む): 34722688

約数和(自身を除く): 14441665

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 11923, 35769, 83461, 107307, 250383, 321921, 751149, 965763, 2253447, 2897289, 6760341, 20281023]

約数ペア:

[(1, 20281023), (3, 6760341), (7, 2897289), (9, 2253447), (21, 965763), (27, 751149), (63, 321921), (81, 250383), (189, 107307), (243, 83461), (567, 35769), (1701, 11923)]