21044972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{9871}}^1$

素因数の和:9929

約数の個数: 24

約数和(自身を含む): 40633152

約数和(自身を除く): 19588180

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 164, 533, 1066, 2132, 9871, 19742, 39484, 128323, 256646, 404711, 513292, 809422, 1618844, 5261243, 10522486, 21044972]

約数ペア:

[(1, 21044972), (2, 10522486), (4, 5261243), (13, 1618844), (26, 809422), (41, 513292), (52, 404711), (82, 256646), (164, 128323), (533, 39484), (1066, 19742), (2132, 9871)]