18421788

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19937}}^1$

素因数の和:19962

約数の個数: 48

約数和(自身を含む): 53593344

約数和(自身を除く): 35171556

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 19937, 39874, 59811, 79748, 119622, 139559, 219307, 239244, 279118, 418677, 438614, 558236, 657921, 837354, 877228, 1315842, 1535149, 1674708, 2631684, 3070298, 4605447, 6140596, 9210894, 18421788]

約数ペア:

[(1, 18421788), (2, 9210894), (3, 6140596), (4, 4605447), (6, 3070298), (7, 2631684), (11, 1674708), (12, 1535149), (14, 1315842), (21, 877228), (22, 837354), (28, 657921), (33, 558236), (42, 438614), (44, 418677), (66, 279118), (77, 239244), (84, 219307), (132, 139559), (154, 119622), (231, 79748), (308, 59811), (462, 39874), (924, 19937)]