18254992

素因数分解:

$2^4\times 7^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:823

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 22367408

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 389, 419, 778, 838, 1556, 1676, 2723, 2933, 3112, 3352, 5446, 5866, 6224, 6704, 10892, 11732, 21784, 23464, 43568, 46928, 162991, 325982, 651964, 1140937, 1303928, 2281874, 2607856, 4563748, 9127496, 18254992]

約数ペア:

[(1, 18254992), (2, 9127496), (4, 4563748), (7, 2607856), (8, 2281874), (14, 1303928), (16, 1140937), (28, 651964), (56, 325982), (112, 162991), (389, 46928), (419, 43568), (778, 23464), (838, 21784), (1556, 11732), (1676, 10892), (2723, 6704), (2933, 6224), (3112, 5866), (3352, 5446)]