21170402

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{87481}}^1$

素因数の和:87505

約数の個数: 12

約数和(自身を含む): 34905318

約数和(自身を除く): 13734916

約数列:

[1, 2, 11, 22, 121, 242, 87481, 174962, 962291, 1924582, 10585201, 21170402]

約数ペア:

[(1, 21170402), (2, 10585201), (11, 1924582), (22, 962291), (121, 174962), (242, 87481)]