21266036

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{4517}}^1$

素因数の和:4639

約数の個数: 24

約数和(自身を含む): 40987296

約数和(自身を除く): 19721260

約数列:

[1, 2, 4, 11, 22, 44, 107, 214, 428, 1177, 2354, 4517, 4708, 9034, 18068, 49687, 99374, 198748, 483319, 966638, 1933276, 5316509, 10633018, 21266036]

約数ペア:

[(1, 21266036), (2, 10633018), (4, 5316509), (11, 1933276), (22, 966638), (44, 483319), (107, 198748), (214, 99374), (428, 49687), (1177, 18068), (2354, 9034), (4517, 4708)]