21489842

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{88801}}^1$

素因数の和:88825

約数の個数: 12

約数和(自身を含む): 35431998

約数和(自身を除く): 13942156

約数列:

[1, 2, 11, 22, 121, 242, 88801, 177602, 976811, 1953622, 10744921, 21489842]

約数ペア:

[(1, 21489842), (2, 10744921), (11, 1953622), (22, 976811), (121, 177602), (242, 88801)]