266987138

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{18757}}^1$

素因数の和:19417

約数の個数: 16

約数和(自身を含む): 437586624

約数和(自身を除く): 170599486

約数列:

[1, 2, 11, 22, 647, 1294, 7117, 14234, 18757, 37514, 206327, 412654, 12135779, 24271558, 133493569, 266987138]

約数ペア:

[(1, 266987138), (2, 133493569), (11, 24271558), (22, 12135779), (647, 412654), (1294, 206327), (7117, 37514), (14234, 18757)]