19888478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{2347}}^1$

素因数の和:2591

約数の個数: 16

約数和(自身を含む): 31557120

約数和(自身を除く): 11668642

約数列:

[1, 2, 19, 38, 223, 446, 2347, 4237, 4694, 8474, 44593, 89186, 523381, 1046762, 9944239, 19888478]

約数ペア:

[(1, 19888478), (2, 9944239), (19, 1046762), (38, 523381), (223, 89186), (446, 44593), (2347, 8474), (4237, 4694)]