19677819

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{19937}}^1$

素因数の和:19994

約数の個数: 16

約数和(自身を含む): 30624768

約数和(自身を除く): 10946949

約数列:

[1, 3, 7, 21, 47, 141, 329, 987, 19937, 59811, 139559, 418677, 937039, 2811117, 6559273, 19677819]

約数ペア:

[(1, 19677819), (3, 6559273), (7, 2811117), (21, 937039), (47, 418677), (141, 139559), (329, 59811), (987, 19937)]