19938438

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1$

素因数の和:773

約数の個数: 48

約数和(自身を含む): 46934160

約数和(自身を除く): 26995722

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 139, 234, 278, 417, 613, 834, 1226, 1251, 1807, 1839, 2502, 3614, 3678, 5421, 5517, 7969, 10842, 11034, 15938, 16263, 23907, 32526, 47814, 71721, 85207, 143442, 170414, 255621, 511242, 766863, 1107691, 1533726, 2215382, 3323073, 6646146, 9969219, 19938438]

約数ペア:

[(1, 19938438), (2, 9969219), (3, 6646146), (6, 3323073), (9, 2215382), (13, 1533726), (18, 1107691), (26, 766863), (39, 511242), (78, 255621), (117, 170414), (139, 143442), (234, 85207), (278, 71721), (417, 47814), (613, 32526), (834, 23907), (1226, 16263), (1251, 15938), (1807, 11034), (1839, 10842), (2502, 7969), (3614, 5517), (3678, 5421)]