21168950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3499}}^1$

素因数の和:3533

約数の個数: 36

約数和(自身を含む): 43291500

約数和(自身を除く): 22122550

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3499, 6050, 6998, 17495, 34990, 38489, 76978, 87475, 174950, 192445, 384890, 423379, 846758, 962225, 1924450, 2116895, 4233790, 10584475, 21168950]

約数ペア:

[(1, 21168950), (2, 10584475), (5, 4233790), (10, 2116895), (11, 1924450), (22, 962225), (25, 846758), (50, 423379), (55, 384890), (110, 192445), (121, 174950), (242, 87475), (275, 76978), (550, 38489), (605, 34990), (1210, 17495), (3025, 6998), (3499, 6050)]