18890008

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{4639}}^1$

素因数の和:5154

約数の個数: 16

約数和(自身を含む): 35496000

約数和(自身を除く): 16605992

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 4639, 9278, 18556, 37112, 2361251, 4722502, 9445004, 18890008]

約数ペア:

[(1, 18890008), (2, 9445004), (4, 4722502), (8, 2361251), (509, 37112), (1018, 18556), (2036, 9278), (4072, 4639)]