261691773

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{859}}^1$

素因数の和:1121

約数の個数: 32

約数和(自身を含む): 406195200

約数和(自身を除く): 144503427

約数列:

[1, 3, 7, 21, 89, 163, 267, 489, 623, 859, 1141, 1869, 2577, 3423, 6013, 14507, 18039, 43521, 76451, 101549, 140017, 229353, 304647, 420051, 535157, 980119, 1605471, 2940357, 12461513, 37384539, 87230591, 261691773]

約数ペア:

[(1, 261691773), (3, 87230591), (7, 37384539), (21, 12461513), (89, 2940357), (163, 1605471), (267, 980119), (489, 535157), (623, 420051), (859, 304647), (1141, 229353), (1869, 140017), (2577, 101549), (3423, 76451), (6013, 43521), (14507, 18039)]