20859606

素因数分解:

$2^1\times 3^7\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 49593600

約数和(自身を除く): 28733994

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 251, 342, 486, 502, 513, 729, 753, 1026, 1458, 1506, 1539, 2187, 2259, 3078, 4374, 4518, 4617, 4769, 6777, 9234, 9538, 13554, 13851, 14307, 20331, 27702, 28614, 40662, 41553, 42921, 60993, 83106, 85842, 121986, 128763, 182979, 257526, 365958, 386289, 548937, 772578, 1097874, 1158867, 2317734, 3476601, 6953202, 10429803, 20859606]

約数ペア:

[(1, 20859606), (2, 10429803), (3, 6953202), (6, 3476601), (9, 2317734), (18, 1158867), (19, 1097874), (27, 772578), (38, 548937), (54, 386289), (57, 365958), (81, 257526), (114, 182979), (162, 128763), (171, 121986), (243, 85842), (251, 83106), (342, 60993), (486, 42921), (502, 41553), (513, 40662), (729, 28614), (753, 27702), (1026, 20331), (1458, 14307), (1506, 13851), (1539, 13554), (2187, 9538), (2259, 9234), (3078, 6777), (4374, 4769), (4518, 4617)]