261001138

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{10391}}^1$

素因数の和:11073

約数の個数: 16

約数和(自身を含む): 412770240

約数和(自身を除く): 151769102

約数列:

[1, 2, 19, 38, 661, 1322, 10391, 12559, 20782, 25118, 197429, 394858, 6868451, 13736902, 130500569, 261001138]

約数ペア:

[(1, 261001138), (2, 130500569), (19, 13736902), (38, 6868451), (661, 394858), (1322, 197429), (10391, 25118), (12559, 20782)]