71581391

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 83656704

約数和(自身を除く): 12075313

約数列:

[1, 7, 73, 127, 511, 889, 1103, 7721, 9271, 64897, 80519, 140081, 563633, 980567, 10225913, 71581391]

約数ペア:

[(1, 71581391), (7, 10225913), (73, 980567), (127, 563633), (511, 140081), (889, 80519), (1103, 64897), (7721, 9271)]