19428555

素因数分解:

$3^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1307}}^1$

素因数の和:2306

約数の個数: 16

約数和(自身を含む): 31140864

約数和(自身を除く): 11712309

約数列:

[1, 3, 5, 15, 991, 1307, 2973, 3921, 4955, 6535, 14865, 19605, 1295237, 3885711, 6476185, 19428555]

約数ペア:

[(1, 19428555), (3, 6476185), (5, 3885711), (15, 1295237), (991, 19605), (1307, 14865), (2973, 6535), (3921, 4955)]