201991867

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{374753}}^1$

素因数の和:374778

約数の個数: 12

約数和(自身を含む): 256331736

約数和(自身を除く): 54339869

約数列:

[1, 7, 11, 49, 77, 539, 374753, 2623271, 4122283, 18362897, 28855981, 201991867]

約数ペア:

[(1, 201991867), (7, 28855981), (11, 18362897), (49, 4122283), (77, 2623271), (539, 374753)]