18939768

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:848

約数の個数: 64

約数和(自身を含む): 51023520

約数和(自身を除く): 32083752

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 61, 68, 102, 122, 136, 183, 204, 244, 366, 408, 488, 732, 761, 1037, 1464, 1522, 2074, 2283, 3044, 3111, 4148, 4566, 6088, 6222, 8296, 9132, 12444, 12937, 18264, 24888, 25874, 38811, 46421, 51748, 77622, 92842, 103496, 139263, 155244, 185684, 278526, 310488, 371368, 557052, 789157, 1114104, 1578314, 2367471, 3156628, 4734942, 6313256, 9469884, 18939768]

約数ペア:

[(1, 18939768), (2, 9469884), (3, 6313256), (4, 4734942), (6, 3156628), (8, 2367471), (12, 1578314), (17, 1114104), (24, 789157), (34, 557052), (51, 371368), (61, 310488), (68, 278526), (102, 185684), (122, 155244), (136, 139263), (183, 103496), (204, 92842), (244, 77622), (366, 51748), (408, 46421), (488, 38811), (732, 25874), (761, 24888), (1037, 18264), (1464, 12937), (1522, 12444), (2074, 9132), (2283, 8296), (3044, 6222), (3111, 6088), (4148, 4566)]