1999788321

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{3187}}^1\times {\mathrm{5653}}^1$

素因数の和:8880

約数の個数: 16

約数和(自身を含む): 2739792704

約数和(自身を除く): 740004383

約数列:

[1, 3, 37, 111, 3187, 5653, 9561, 16959, 117919, 209161, 353757, 627483, 18016111, 54048333, 666596107, 1999788321]

約数ペア:

[(1, 1999788321), (3, 666596107), (37, 54048333), (111, 18016111), (3187, 627483), (5653, 353757), (9561, 209161), (16959, 117919)]