18388143

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{563}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 28154880

約数和(自身を除く): 9766737

約数列:

[1, 3, 9, 19, 57, 171, 191, 563, 573, 1689, 1719, 3629, 5067, 10697, 10887, 32091, 32661, 96273, 107533, 322599, 967797, 2043127, 6129381, 18388143]

約数ペア:

[(1, 18388143), (3, 6129381), (9, 2043127), (19, 967797), (57, 322599), (171, 107533), (191, 96273), (563, 32661), (573, 32091), (1689, 10887), (1719, 10697), (3629, 5067)]