20746943

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{449}}^1$

素因数の和:527

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5108257

約数列:

[1, 7, 23, 41, 49, 161, 287, 449, 943, 1127, 2009, 3143, 6601, 10327, 18409, 22001, 46207, 72289, 128863, 423407, 506023, 902041, 2963849, 20746943]

約数ペア:

[(1, 20746943), (7, 2963849), (23, 902041), (41, 506023), (49, 423407), (161, 128863), (287, 72289), (449, 46207), (943, 22001), (1127, 18409), (2009, 10327), (3143, 6601)]