128575251

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{33457}}^1$

素因数の和:33531

約数の個数: 24

約数和(自身を含む): 215737184

約数和(自身を除く): 87161933

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 33457, 100371, 234199, 301113, 702597, 2040877, 2107791, 6122631, 14286139, 18367893, 42858417, 128575251]

約数ペア:

[(1, 128575251), (3, 42858417), (7, 18367893), (9, 14286139), (21, 6122631), (61, 2107791), (63, 2040877), (183, 702597), (427, 301113), (549, 234199), (1281, 100371), (3843, 33457)]