20578734

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^2$

素因数の和:162

約数の個数: 72

約数和(自身を含む): 50915592

約数和(自身を除く): 30336858

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 53, 66, 74, 99, 106, 111, 159, 198, 222, 318, 333, 407, 477, 583, 666, 814, 954, 1166, 1221, 1749, 1961, 2442, 2809, 3498, 3663, 3922, 5247, 5618, 5883, 7326, 8427, 10494, 11766, 16854, 17649, 21571, 25281, 30899, 35298, 43142, 50562, 61798, 64713, 92697, 103933, 129426, 185394, 194139, 207866, 278091, 311799, 388278, 556182, 623598, 935397, 1143263, 1870794, 2286526, 3429789, 6859578, 10289367, 20578734]

約数ペア:

[(1, 20578734), (2, 10289367), (3, 6859578), (6, 3429789), (9, 2286526), (11, 1870794), (18, 1143263), (22, 935397), (33, 623598), (37, 556182), (53, 388278), (66, 311799), (74, 278091), (99, 207866), (106, 194139), (111, 185394), (159, 129426), (198, 103933), (222, 92697), (318, 64713), (333, 61798), (407, 50562), (477, 43142), (583, 35298), (666, 30899), (814, 25281), (954, 21571), (1166, 17649), (1221, 16854), (1749, 11766), (1961, 10494), (2442, 8427), (2809, 7326), (3498, 5883), (3663, 5618), (3922, 5247)]