18656245

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{647}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 23016960

約数和(自身を除く): 4360715

約数列:

[1, 5, 73, 79, 365, 395, 647, 3235, 5767, 28835, 47231, 51113, 236155, 255565, 3731249, 18656245]

約数ペア:

[(1, 18656245), (5, 3731249), (73, 255565), (79, 236155), (365, 51113), (395, 47231), (647, 28835), (3235, 5767)]