21017444

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5479}}^1$

素因数の和:5627

約数の個数: 24

約数和(自身を含む): 42349440

約数和(自身を除く): 21331996

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5479, 10958, 21916, 38353, 76706, 153412, 750623, 1501246, 3002492, 5254361, 10508722, 21017444]

約数ペア:

[(1, 21017444), (2, 10508722), (4, 5254361), (7, 3002492), (14, 1501246), (28, 750623), (137, 153412), (274, 76706), (548, 38353), (959, 21916), (1918, 10958), (3836, 5479)]