19009809

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2579}}^1$

素因数の和:2611

約数の個数: 40

約数和(自身を含む): 34964160

約数和(自身を除く): 15954351

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2579, 7371, 7737, 18053, 23211, 33527, 54159, 69633, 100581, 162477, 208899, 234689, 301743, 487431, 704067, 905229, 1462293, 2112201, 2715687, 6336603, 19009809]

約数ペア:

[(1, 19009809), (3, 6336603), (7, 2715687), (9, 2112201), (13, 1462293), (21, 905229), (27, 704067), (39, 487431), (63, 301743), (81, 234689), (91, 208899), (117, 162477), (189, 100581), (273, 69633), (351, 54159), (567, 33527), (819, 23211), (1053, 18053), (2457, 7737), (2579, 7371)]