18440444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 37830240

約数和(自身を除く): 19389796

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 89, 178, 187, 277, 356, 374, 554, 748, 979, 1108, 1513, 1958, 3026, 3047, 3916, 4709, 6052, 6094, 9418, 12188, 16643, 18836, 24653, 33286, 49306, 51799, 66572, 98612, 103598, 207196, 271183, 419101, 542366, 838202, 1084732, 1676404, 4610111, 9220222, 18440444]

約数ペア:

[(1, 18440444), (2, 9220222), (4, 4610111), (11, 1676404), (17, 1084732), (22, 838202), (34, 542366), (44, 419101), (68, 271183), (89, 207196), (178, 103598), (187, 98612), (277, 66572), (356, 51799), (374, 49306), (554, 33286), (748, 24653), (979, 18836), (1108, 16643), (1513, 12188), (1958, 9418), (3026, 6094), (3047, 6052), (3916, 4709)]