20161689906

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{229}}^1\times {\mathrm{20873}}^1$

素因数の和:21163

約数の個数: 64

約数和(自身を含む): 43785302400

約数和(自身を除く): 23623612494

約数列:

[1, 2, 3, 6, 19, 37, 38, 57, 74, 111, 114, 222, 229, 458, 687, 703, 1374, 1406, 2109, 4218, 4351, 8473, 8702, 13053, 16946, 20873, 25419, 26106, 41746, 50838, 62619, 125238, 160987, 321974, 396587, 482961, 772301, 793174, 965922, 1189761, 1544602, 2316903, 2379522, 4633806, 4779917, 9559834, 14339751, 14673719, 28679502, 29347438, 44021157, 88042314, 90818423, 176856929, 181636846, 272455269, 353713858, 530570787, 544910538, 1061141574, 3360281651, 6720563302, 10080844953, 20161689906]

約数ペア:

[(1, 20161689906), (2, 10080844953), (3, 6720563302), (6, 3360281651), (19, 1061141574), (37, 544910538), (38, 530570787), (57, 353713858), (74, 272455269), (111, 181636846), (114, 176856929), (222, 90818423), (229, 88042314), (458, 44021157), (687, 29347438), (703, 28679502), (1374, 14673719), (1406, 14339751), (2109, 9559834), (4218, 4779917), (4351, 4633806), (8473, 2379522), (8702, 2316903), (13053, 1544602), (16946, 1189761), (20873, 965922), (25419, 793174), (26106, 772301), (41746, 482961), (50838, 396587), (62619, 321974), (125238, 160987)]