20013318

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:100

約数の個数: 120

約数和(自身を含む): 52611768

約数和(自身を除く): 32598450

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 27, 34, 39, 43, 51, 54, 78, 81, 86, 102, 117, 129, 153, 162, 169, 221, 234, 258, 306, 338, 351, 387, 442, 459, 507, 559, 663, 702, 731, 774, 918, 1014, 1053, 1118, 1161, 1326, 1377, 1462, 1521, 1677, 1989, 2106, 2193, 2322, 2754, 2873, 3042, 3354, 3483, 3978, 4386, 4563, 5031, 5746, 5967, 6579, 6966, 7267, 8619, 9126, 9503, 10062, 11934, 13158, 13689, 14534, 15093, 17238, 17901, 19006, 19737, 21801, 25857, 27378, 28509, 30186, 35802, 39474, 43602, 45279, 51714, 57018, 59211, 65403, 77571, 85527, 90558, 118422, 123539, 130806, 155142, 171054, 196209, 232713, 247078, 256581, 370617, 392418, 465426, 513162, 588627, 741234, 769743, 1111851, 1177254, 1539486, 2223702, 3335553, 6671106, 10006659, 20013318]

約数ペア:

[(1, 20013318), (2, 10006659), (3, 6671106), (6, 3335553), (9, 2223702), (13, 1539486), (17, 1177254), (18, 1111851), (26, 769743), (27, 741234), (34, 588627), (39, 513162), (43, 465426), (51, 392418), (54, 370617), (78, 256581), (81, 247078), (86, 232713), (102, 196209), (117, 171054), (129, 155142), (153, 130806), (162, 123539), (169, 118422), (221, 90558), (234, 85527), (258, 77571), (306, 65403), (338, 59211), (351, 57018), (387, 51714), (442, 45279), (459, 43602), (507, 39474), (559, 35802), (663, 30186), (702, 28509), (731, 27378), (774, 25857), (918, 21801), (1014, 19737), (1053, 19006), (1118, 17901), (1161, 17238), (1326, 15093), (1377, 14534), (1462, 13689), (1521, 13158), (1677, 11934), (1989, 10062), (2106, 9503), (2193, 9126), (2322, 8619), (2754, 7267), (2873, 6966), (3042, 6579), (3354, 5967), (3483, 5746), (3978, 5031), (4386, 4563)]