19312461

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7129}}^1$

素因数の和:7185

約数の個数: 24

約数和(自身を含む): 32626880

約数和(自身を除く): 13314419

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7129, 21387, 49903, 64161, 149709, 306547, 449127, 919641, 2145829, 2758923, 6437487, 19312461]

約数ペア:

[(1, 19312461), (3, 6437487), (7, 2758923), (9, 2145829), (21, 919641), (43, 449127), (63, 306547), (129, 149709), (301, 64161), (387, 49903), (903, 21387), (2709, 7129)]