19894678

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{11689}}^1$

素因数の和:11751

約数の個数: 16

約数和(自身を含む): 31983840

約数和(自身を除く): 12089162

約数列:

[1, 2, 23, 37, 46, 74, 851, 1702, 11689, 23378, 268847, 432493, 537694, 864986, 9947339, 19894678]

約数ペア:

[(1, 19894678), (2, 9947339), (23, 864986), (37, 537694), (46, 432493), (74, 268847), (851, 23378), (1702, 11689)]