21787142

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{883}}^1$

素因数の和:984

約数の個数: 24

約数和(自身を含む): 35913384

約数和(自身を除く): 14126242

約数列:

[1, 2, 13, 26, 73, 146, 169, 338, 883, 949, 1766, 1898, 11479, 12337, 22958, 24674, 64459, 128918, 149227, 298454, 837967, 1675934, 10893571, 21787142]

約数ペア:

[(1, 21787142), (2, 10893571), (13, 1675934), (26, 837967), (73, 298454), (146, 149227), (169, 128918), (338, 64459), (883, 24674), (949, 22958), (1766, 12337), (1898, 11479)]