19908441

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7349}}^1$

素因数の和:7405

約数の個数: 24

約数和(自身を含む): 33633600

約数和(自身を除く): 13725159

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7349, 22047, 51443, 66141, 154329, 316007, 462987, 948021, 2212049, 2844063, 6636147, 19908441]

約数ペア:

[(1, 19908441), (3, 6636147), (7, 2844063), (9, 2212049), (21, 948021), (43, 462987), (63, 316007), (129, 154329), (301, 66141), (387, 51443), (903, 22047), (2709, 7349)]