18972933

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21011}}^1$

素因数の和:21064

約数の個数: 16

約数和(自身を含む): 29584896

約数和(自身を除く): 10611963

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 21011, 63033, 147077, 441231, 903473, 2710419, 6324311, 18972933]

約数ペア:

[(1, 18972933), (3, 6324311), (7, 2710419), (21, 903473), (43, 441231), (129, 147077), (301, 63033), (903, 21011)]