18756283

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2903}}^1$

素因数の和:2994

約数の個数: 16

約数和(自身を含む): 23417856

約数和(自身を除く): 4661573

約数列:

[1, 7, 13, 71, 91, 497, 923, 2903, 6461, 20321, 37739, 206113, 264173, 1442791, 2679469, 18756283]

約数ペア:

[(1, 18756283), (7, 2679469), (13, 1442791), (71, 264173), (91, 206113), (497, 37739), (923, 20321), (2903, 6461)]