20123492557

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{22189}}^1$

素因数の和:22393

約数の個数: 32

約数和(自身を含む): 24744867840

約数和(自身を除く): 4621375283

約数列:

[1, 7, 23, 43, 131, 161, 301, 917, 989, 3013, 5633, 6923, 21091, 22189, 39431, 129559, 155323, 510347, 906913, 954127, 2906759, 3572429, 6678889, 20347313, 21944921, 66855457, 124990637, 153614447, 467988199, 874934459, 2874784651, 20123492557]

約数ペア:

[(1, 20123492557), (7, 2874784651), (23, 874934459), (43, 467988199), (131, 153614447), (161, 124990637), (301, 66855457), (917, 21944921), (989, 20347313), (3013, 6678889), (5633, 3572429), (6923, 2906759), (21091, 954127), (22189, 906913), (39431, 510347), (129559, 155323)]