19668021

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{3877}}^1$

素因数の和:3988

約数の個数: 16

約数和(自身を含む): 27921600

約数和(自身を除く): 8253579

約数列:

[1, 3, 19, 57, 89, 267, 1691, 3877, 5073, 11631, 73663, 220989, 345053, 1035159, 6556007, 19668021]

約数ペア:

[(1, 19668021), (3, 6556007), (19, 1035159), (57, 345053), (89, 220989), (267, 73663), (1691, 11631), (3877, 5073)]