16687784

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{349}}^1$

素因数の和:537

約数の個数: 32

約数和(自身を含む): 32340000

約数和(自身を除く): 15652216

約数列:

[1, 2, 4, 8, 43, 86, 139, 172, 278, 344, 349, 556, 698, 1112, 1396, 2792, 5977, 11954, 15007, 23908, 30014, 47816, 48511, 60028, 97022, 120056, 194044, 388088, 2085973, 4171946, 8343892, 16687784]

約数ペア:

[(1, 16687784), (2, 8343892), (4, 4171946), (8, 2085973), (43, 388088), (86, 194044), (139, 120056), (172, 97022), (278, 60028), (344, 48511), (349, 47816), (556, 30014), (698, 23908), (1112, 15007), (1396, 11954), (2792, 5977)]