19925157

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 31719424

約数和(自身を除く): 11794267

約数列:

[1, 3, 7, 21, 31, 93, 127, 217, 241, 381, 651, 723, 889, 1687, 2667, 3937, 5061, 7471, 11811, 22413, 27559, 30607, 52297, 82677, 91821, 156891, 214249, 642747, 948817, 2846451, 6641719, 19925157]

約数ペア:

[(1, 19925157), (3, 6641719), (7, 2846451), (21, 948817), (31, 642747), (93, 214249), (127, 156891), (217, 91821), (241, 82677), (381, 52297), (651, 30607), (723, 27559), (889, 22413), (1687, 11811), (2667, 7471), (3937, 5061)]