19712085

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:385

約数の個数: 32

約数和(自身を含む): 32514048

約数和(自身を除く): 12801963

約数列:

[1, 3, 5, 15, 71, 83, 213, 223, 249, 355, 415, 669, 1065, 1115, 1245, 3345, 5893, 15833, 17679, 18509, 29465, 47499, 55527, 79165, 88395, 92545, 237495, 277635, 1314139, 3942417, 6570695, 19712085]

約数ペア:

[(1, 19712085), (3, 6570695), (5, 3942417), (15, 1314139), (71, 277635), (83, 237495), (213, 92545), (223, 88395), (249, 79165), (355, 55527), (415, 47499), (669, 29465), (1065, 18509), (1115, 17679), (1245, 15833), (3345, 5893)]