21311334

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2909}}^1$

素因数の和:2965

約数の個数: 48

約数和(自身を含む): 51751440

約数和(自身を除く): 30440106

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 66, 74, 99, 111, 198, 222, 333, 407, 666, 814, 1221, 2442, 2909, 3663, 5818, 7326, 8727, 17454, 26181, 31999, 52362, 63998, 95997, 107633, 191994, 215266, 287991, 322899, 575982, 645798, 968697, 1183963, 1937394, 2367926, 3551889, 7103778, 10655667, 21311334]

約数ペア:

[(1, 21311334), (2, 10655667), (3, 7103778), (6, 3551889), (9, 2367926), (11, 1937394), (18, 1183963), (22, 968697), (33, 645798), (37, 575982), (66, 322899), (74, 287991), (99, 215266), (111, 191994), (198, 107633), (222, 95997), (333, 63998), (407, 52362), (666, 31999), (814, 26181), (1221, 17454), (2442, 8727), (2909, 7326), (3663, 5818)]