21237542

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{4127}}^1$

素因数の和:4243

約数の個数: 16

約数和(自身を含む): 33288192

約数和(自身を除く): 12050650

約数列:

[1, 2, 31, 62, 83, 166, 2573, 4127, 5146, 8254, 127937, 255874, 342541, 685082, 10618771, 21237542]

約数ペア:

[(1, 21237542), (2, 10618771), (31, 685082), (62, 342541), (83, 255874), (166, 127937), (2573, 8254), (4127, 5146)]