16978338

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 72

約数和(自身を含む): 41483988

約数和(自身を除く): 24505650

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 37, 39, 53, 74, 78, 106, 111, 117, 159, 222, 234, 318, 333, 477, 481, 666, 689, 954, 962, 1369, 1378, 1443, 1961, 2067, 2738, 2886, 3922, 4107, 4134, 4329, 5883, 6201, 8214, 8658, 11766, 12321, 12402, 17649, 17797, 24642, 25493, 35298, 35594, 50986, 53391, 72557, 76479, 106782, 145114, 152958, 160173, 217671, 229437, 320346, 435342, 458874, 653013, 943241, 1306026, 1886482, 2829723, 5659446, 8489169, 16978338]

約数ペア:

[(1, 16978338), (2, 8489169), (3, 5659446), (6, 2829723), (9, 1886482), (13, 1306026), (18, 943241), (26, 653013), (37, 458874), (39, 435342), (53, 320346), (74, 229437), (78, 217671), (106, 160173), (111, 152958), (117, 145114), (159, 106782), (222, 76479), (234, 72557), (318, 53391), (333, 50986), (477, 35594), (481, 35298), (666, 25493), (689, 24642), (954, 17797), (962, 17649), (1369, 12402), (1378, 12321), (1443, 11766), (1961, 8658), (2067, 8214), (2738, 6201), (2886, 5883), (3922, 4329), (4107, 4134)]