21991622

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1\times {\mathrm{359}}^1$

素因数の和:751

約数の個数: 16

約数和(自身を含む): 33501600

約数和(自身を除く): 11509978

約数列:

[1, 2, 109, 218, 281, 359, 562, 718, 30629, 39131, 61258, 78262, 100879, 201758, 10995811, 21991622]

約数ペア:

[(1, 21991622), (2, 10995811), (109, 201758), (218, 100879), (281, 78262), (359, 61258), (562, 39131), (718, 30629)]