18515308

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 38836224

約数和(自身を除く): 20320916

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 83, 124, 166, 217, 257, 332, 434, 514, 581, 868, 1028, 1162, 1799, 2324, 2573, 3598, 5146, 7196, 7967, 10292, 15934, 18011, 21331, 31868, 36022, 42662, 55769, 72044, 85324, 111538, 149317, 223076, 298634, 597268, 661261, 1322522, 2645044, 4628827, 9257654, 18515308]

約数ペア:

[(1, 18515308), (2, 9257654), (4, 4628827), (7, 2645044), (14, 1322522), (28, 661261), (31, 597268), (62, 298634), (83, 223076), (124, 149317), (166, 111538), (217, 85324), (257, 72044), (332, 55769), (434, 42662), (514, 36022), (581, 31868), (868, 21331), (1028, 18011), (1162, 15934), (1799, 10292), (2324, 7967), (2573, 7196), (3598, 5146)]