20498004

素因数分解:

$2^2\times 3^2\times {\mathrm{353}}^1\times {\mathrm{1613}}^1$

素因数の和:1976

約数の個数: 36

約数和(自身を含む): 51993396

約数和(自身を除く): 31495392

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 353, 706, 1059, 1412, 1613, 2118, 3177, 3226, 4236, 4839, 6354, 6452, 9678, 12708, 14517, 19356, 29034, 58068, 569389, 1138778, 1708167, 2277556, 3416334, 5124501, 6832668, 10249002, 20498004]

約数ペア:

[(1, 20498004), (2, 10249002), (3, 6832668), (4, 5124501), (6, 3416334), (9, 2277556), (12, 1708167), (18, 1138778), (36, 569389), (353, 58068), (706, 29034), (1059, 19356), (1412, 14517), (1613, 12708), (2118, 9678), (3177, 6452), (3226, 6354), (4236, 4839)]