18307678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20947}}^1$

素因数の和:20991

約数の個数: 16

約数和(自身を含む): 30165120

約数和(自身を除く): 11857442

約数列:

[1, 2, 19, 23, 38, 46, 437, 874, 20947, 41894, 397993, 481781, 795986, 963562, 9153839, 18307678]

約数ペア:

[(1, 18307678), (2, 9153839), (19, 963562), (23, 795986), (38, 481781), (46, 397993), (437, 41894), (874, 20947)]