19987544

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{131497}}^1$

素因数の和:131522

約数の個数: 16

約数和(自身を含む): 39449400

約数和(自身を除く): 19461856

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 131497, 262994, 525988, 1051976, 2498443, 4996886, 9993772, 19987544]

約数ペア:

[(1, 19987544), (2, 9993772), (4, 4996886), (8, 2498443), (19, 1051976), (38, 525988), (76, 262994), (152, 131497)]