20973938

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{5189}}^1$

素因数の和:5281

約数の個数: 16

約数和(自身を含む): 32883840

約数和(自身を除く): 11909902

約数列:

[1, 2, 43, 47, 86, 94, 2021, 4042, 5189, 10378, 223127, 243883, 446254, 487766, 10486969, 20973938]

約数ペア:

[(1, 20973938), (2, 10486969), (43, 487766), (47, 446254), (86, 243883), (94, 223127), (2021, 10378), (4042, 5189)]