19505308

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{997}}^1$

素因数の和:1141

約数の個数: 24

約数和(自身を含む): 35153552

約数和(自身を除く): 15648244

約数列:

[1, 2, 4, 67, 73, 134, 146, 268, 292, 997, 1994, 3988, 4891, 9782, 19564, 66799, 72781, 133598, 145562, 267196, 291124, 4876327, 9752654, 19505308]

約数ペア:

[(1, 19505308), (2, 9752654), (4, 4876327), (67, 291124), (73, 267196), (134, 145562), (146, 133598), (268, 72781), (292, 66799), (997, 19564), (1994, 9782), (3988, 4891)]