18915395

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1787}}^1$

素因数の和:1894

約数の個数: 16

約数和(自身を含む): 23816160

約数和(自身を除く): 4900765

約数列:

[1, 5, 29, 73, 145, 365, 1787, 2117, 8935, 10585, 51823, 130451, 259115, 652255, 3783079, 18915395]

約数ペア:

[(1, 18915395), (5, 3783079), (29, 652255), (73, 259115), (145, 130451), (365, 51823), (1787, 10585), (2117, 8935)]