18890456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{181639}}^1$

素因数の和:181658

約数の個数: 16

約数和(自身を含む): 38144400

約数和(自身を除く): 19253944

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 181639, 363278, 726556, 1453112, 2361307, 4722614, 9445228, 18890456]

約数ペア:

[(1, 18890456), (2, 9445228), (4, 4722614), (8, 2361307), (13, 1453112), (26, 726556), (52, 363278), (104, 181639)]