21389506

素因数分解:

$2^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1$

素因数の和:1833

約数の個数: 16

約数和(自身を含む): 32947200

約数和(自身を除く): 11557694

約数列:

[1, 2, 59, 109, 118, 218, 1663, 3326, 6431, 12862, 98117, 181267, 196234, 362534, 10694753, 21389506]

約数ペア:

[(1, 21389506), (2, 10694753), (59, 362534), (109, 196234), (118, 181267), (218, 98117), (1663, 12862), (3326, 6431)]