21921812

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{45293}}^1$

素因数の和:45319

約数の個数: 18

約数和(自身を含む): 42168714

約数和(自身を除く): 20246902

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 45293, 90586, 181172, 498223, 996446, 1992892, 5480453, 10960906, 21921812]

約数ペア:

[(1, 21921812), (2, 10960906), (4, 5480453), (11, 1992892), (22, 996446), (44, 498223), (121, 181172), (242, 90586), (484, 45293)]