20013966

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:117

約数の個数: 112

約数和(自身を含む): 53828064

約数和(自身を除く): 33814098

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 37, 42, 53, 54, 63, 74, 81, 106, 111, 126, 159, 162, 189, 222, 243, 259, 318, 333, 371, 378, 477, 486, 518, 567, 666, 729, 742, 777, 954, 999, 1113, 1134, 1431, 1458, 1554, 1701, 1961, 1998, 2226, 2331, 2862, 2997, 3339, 3402, 3922, 4293, 4662, 5103, 5883, 5994, 6678, 6993, 8586, 8991, 10017, 10206, 11766, 12879, 13727, 13986, 17649, 17982, 20034, 20979, 25758, 26973, 27454, 30051, 35298, 38637, 41181, 41958, 52947, 53946, 60102, 62937, 77274, 82362, 90153, 105894, 123543, 125874, 158841, 180306, 188811, 247086, 270459, 317682, 370629, 377622, 476523, 540918, 741258, 953046, 1111887, 1429569, 2223774, 2859138, 3335661, 6671322, 10006983, 20013966]

約数ペア:

[(1, 20013966), (2, 10006983), (3, 6671322), (6, 3335661), (7, 2859138), (9, 2223774), (14, 1429569), (18, 1111887), (21, 953046), (27, 741258), (37, 540918), (42, 476523), (53, 377622), (54, 370629), (63, 317682), (74, 270459), (81, 247086), (106, 188811), (111, 180306), (126, 158841), (159, 125874), (162, 123543), (189, 105894), (222, 90153), (243, 82362), (259, 77274), (318, 62937), (333, 60102), (371, 53946), (378, 52947), (477, 41958), (486, 41181), (518, 38637), (567, 35298), (666, 30051), (729, 27454), (742, 26973), (777, 25758), (954, 20979), (999, 20034), (1113, 17982), (1134, 17649), (1431, 13986), (1458, 13727), (1554, 12879), (1701, 11766), (1961, 10206), (1998, 10017), (2226, 8991), (2331, 8586), (2862, 6993), (2997, 6678), (3339, 5994), (3402, 5883), (3922, 5103), (4293, 4662)]