19642427

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{293}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 23040192

約数和(自身を除く): 3397765

約数列:

[1, 7, 61, 157, 293, 427, 1099, 2051, 9577, 17873, 46001, 67039, 125111, 322007, 2806061, 19642427]

約数ペア:

[(1, 19642427), (7, 2806061), (61, 322007), (157, 125111), (293, 67039), (427, 46001), (1099, 17873), (2051, 9577)]