21497091836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44415479}}^1$

素因数の和:44415505

約数の個数: 18

約数和(自身を含む): 41350811880

約数和(自身を除く): 19853720044

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44415479, 88830958, 177661916, 488570269, 977140538, 1954281076, 5374272959, 10748545918, 21497091836]

約数ペア:

[(1, 21497091836), (2, 10748545918), (4, 5374272959), (11, 1954281076), (22, 977140538), (44, 488570269), (121, 177661916), (242, 88830958), (484, 44415479)]