18883986

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^2$

素因数の和:120

約数の個数: 72

約数和(自身を含む): 44911440

約数和(自身を除く): 26027454

約数列:

[1, 2, 3, 6, 11, 19, 22, 33, 37, 38, 57, 66, 74, 111, 114, 121, 209, 222, 242, 363, 407, 418, 627, 703, 726, 814, 1221, 1254, 1369, 1406, 2109, 2299, 2442, 2738, 4107, 4218, 4477, 4598, 6897, 7733, 8214, 8954, 13431, 13794, 15059, 15466, 23199, 26011, 26862, 30118, 45177, 46398, 52022, 78033, 85063, 90354, 156066, 165649, 170126, 255189, 286121, 331298, 496947, 510378, 572242, 858363, 993894, 1716726, 3147331, 6294662, 9441993, 18883986]

約数ペア:

[(1, 18883986), (2, 9441993), (3, 6294662), (6, 3147331), (11, 1716726), (19, 993894), (22, 858363), (33, 572242), (37, 510378), (38, 496947), (57, 331298), (66, 286121), (74, 255189), (111, 170126), (114, 165649), (121, 156066), (209, 90354), (222, 85063), (242, 78033), (363, 52022), (407, 46398), (418, 45177), (627, 30118), (703, 26862), (726, 26011), (814, 23199), (1221, 15466), (1254, 15059), (1369, 13794), (1406, 13431), (2109, 8954), (2299, 8214), (2442, 7733), (2738, 6897), (4107, 4598), (4218, 4477)]