21223642

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{87701}}^1$

素因数の和:87725

約数の個数: 12

約数和(自身を含む): 34993098

約数和(自身を除く): 13769456

約数列:

[1, 2, 11, 22, 121, 242, 87701, 175402, 964711, 1929422, 10611821, 21223642]

約数ペア:

[(1, 21223642), (2, 10611821), (11, 1929422), (22, 964711), (121, 175402), (242, 87701)]