19801456

素因数分解:

$2^4\times {\mathrm{593}}^1\times {\mathrm{2087}}^1$

素因数の和:2688

約数の個数: 20

約数和(自身を含む): 38448432

約数和(自身を除く): 18646976

約数列:

[1, 2, 4, 8, 16, 593, 1186, 2087, 2372, 4174, 4744, 8348, 9488, 16696, 33392, 1237591, 2475182, 4950364, 9900728, 19801456]

約数ペア:

[(1, 19801456), (2, 9900728), (4, 4950364), (8, 2475182), (16, 1237591), (593, 33392), (1186, 16696), (2087, 9488), (2372, 8348), (4174, 4744)]